Finding the Fourth Proportional to 567,503.87, 783,160.61 and 312,864.17
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Solution
The fourth proportional to 567,503.87, 783,160.61 and 312,864.17 is: 431,755.45
Step by Step Solution
- Step 1: Write the proportion equation
567,503.87 : 783,160.61 = 312,864.17 : x - Step 2: Convert to fraction form
567,503.87/783,160.61 = 312,864.17/x - Step 3: Cross multiply
567,503.87x = 783,160.61 × 312,864.17 - Step 4: Simplify right side
567,503.87x = 245,022,888,744.22 - Step 5: Solve for x
x = 245,022,888,744.22/567,503.87 - Step 6: Final answer
x = 431,755.45
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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.