Finding the Fourth Proportional to 745,924.40, 1,029,366.06 and 406,392.92
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Solution
The fourth proportional to 745,924.40, 1,029,366.06 and 406,392.92 is: 560,816.99
Step by Step Solution
- Step 1: Write the proportion equation
745,924.40 : 1,029,366.06 = 406,392.92 : x - Step 2: Convert to fraction form
745,924.40/1,029,366.06 = 406,392.92/x - Step 3: Cross multiply
745,924.40x = 1,029,366.06 × 406,392.92 - Step 4: Simplify right side
745,924.40x = 418,327,078,872.30 - Step 5: Solve for x
x = 418,327,078,872.30/745,924.40 - Step 6: Final answer
x = 560,816.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.