Finding the Fourth Proportional to 715,204.05, 986,981.97 and 392,934.90
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Solution
The fourth proportional to 715,204.05, 986,981.97 and 392,934.90 is: 542,250.37
Step by Step Solution
- Step 1: Write the proportion equation
715,204.05 : 986,981.97 = 392,934.90 : x - Step 2: Convert to fraction form
715,204.05/986,981.97 = 392,934.90/x - Step 3: Cross multiply
715,204.05x = 986,981.97 × 392,934.90 - Step 4: Simplify right side
715,204.05x = 387,819,661,683.75 - Step 5: Solve for x
x = 387,819,661,683.75/715,204.05 - Step 6: Final answer
x = 542,250.37
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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.