Finding the Fourth Proportional to 715,051.36, 986,775.11 and 392,753.17
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Solution
The fourth proportional to 715,051.36, 986,775.11 and 392,753.17 is: 542,001.70
Step by Step Solution
- Step 1: Write the proportion equation
715,051.36 : 986,775.11 = 392,753.17 : x - Step 2: Convert to fraction form
715,051.36/986,775.11 = 392,753.17/x - Step 3: Cross multiply
715,051.36x = 986,775.11 × 392,753.17 - Step 4: Simplify right side
715,051.36x = 387,559,052,529.60 - Step 5: Solve for x
x = 387,559,052,529.60/715,051.36 - Step 6: Final answer
x = 542,001.70
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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.