- $\frac{x}{{ - 4}} = \frac{{y - \frac{1}{4}}}{1} = \frac{{z - \frac{3}{4}}}{{ - 5}}$
- $\frac{{x + \frac{3}{5}}}{4} = \frac{{y - \frac{2}{5}}}{{ - 1}} = \frac{z}{5}$
- $\frac{{x - 1}}{4} = \frac{y}{{ - 1}} = \frac{{z - 2}}{5}$
- $\frac{x}{4} = \frac{y}{{ - 1}} = \frac{{z - 1}}{5}$