 Proportional equality in the treatment and distribution of goods to persons involves at least the following concepts or variables: Two or more persons \((P_1, P_2)\) and two or more allocations of goods to persons \((G)\) and \(X\) and \(Y\) as the quantity in which individuals have the relevant normative quality \(E\). This can be represented as an equation with fractions or as a ratio. If \(P1\) has \(E\) in the amount of \(X\) and if \(P_2\) has \(E\) in the amount \(Y\), then \(P_1\) is due \(G\) in the amount of \(X'\) and \(P_2\) is due \(G\) in the amount of \(Y'\), so that the ratio \(X/Y = X'/Y'\) is valid. (For the formula to be usable, the potentially large variety of factors involved have to be both quantifiable in principle and commensurable, i.e., capable of synthesis into an aggregate value.)