Finding the Fourth Proportional to 545,449.68, 752,720.40 and 319,138.92
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Solution
The fourth proportional to 545,449.68, 752,720.40 and 319,138.92 is: 440,411.62
Step by Step Solution
- Step 1: Write the proportion equation
545,449.68 : 752,720.40 = 319,138.92 : x - Step 2: Convert to fraction form
545,449.68/752,720.40 = 319,138.92/x - Step 3: Cross multiply
545,449.68x = 752,720.40 × 319,138.92 - Step 4: Simplify right side
545,449.68x = 240,222,375,517.97 - Step 5: Solve for x
x = 240,222,375,517.97/545,449.68 - Step 6: Final answer
x = 440,411.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.