A simple ansatz for quark mass matrices which yields the Kac-Moody (KM) matrix elements, V(us) = square-root m(d)/m(s), V(cb) = m(s)/m(b) and V(ub) = square-root m(u)/m(t), is investigated, resulting in two empirical identities, m(d)/m(s) = m(s)/m(b) and m(u)/m(c) = m(c)/m(t). Using V(ub) = 0.004 +/- 0.002, we obtain m(t) = (290 +/- 140) GeV. We find that this prediction is consistent with other processes, such as B0-B0BAR mixing. The invariant quantity, J, of CP violation is of the order 3 x 10(-5) in agreement with experiments.