Найти 5 член геометрической прогресии 3/4 2/3

[latex] a_{1} = \frac{3}{4} , [/latex]   [latex] a_{2} = \frac{2}{3} [/latex] [latex] a_{2} = a_{1} * q [/latex] [latex] \frac{2}{3} = \frac{3}{4} * q[/latex] [latex]q = \frac{2}{3} : \frac{3}{4} = \frac{2}{3} * \frac{4}{3} = \frac{8}{9} [/latex] [latex]a_{5} = a_{1} * q^{4} = \frac{3}{4} * (\frac{8}{9})^{4} = \frac{3}{4} * \frac{4096}{6561} = \frac{1024}{2187} [/latex]