Finding the Fourth Proportional to 715,177.24, 986,954.70 and 392,917.12
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Solution
The fourth proportional to 715,177.24, 986,954.70 and 392,917.12 is: 542,231.18
Step by Step Solution
- Step 1: Write the proportion equation
715,177.24 : 986,954.70 = 392,917.12 : x - Step 2: Convert to fraction form
715,177.24/986,954.70 = 392,917.12/x - Step 3: Cross multiply
715,177.24x = 986,954.70 × 392,917.12 - Step 4: Simplify right side
715,177.24x = 387,791,398,294.46 - Step 5: Solve for x
x = 387,791,398,294.46/715,177.24 - Step 6: Final answer
x = 542,231.18
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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.