Finding the Fourth Proportional to 715,247.14, 987,051.96 and 392,963.53
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Solution
The fourth proportional to 715,247.14, 987,051.96 and 392,963.53 is: 542,295.66
Step by Step Solution
- Step 1: Write the proportion equation
715,247.14 : 987,051.96 = 392,963.53 : x - Step 2: Convert to fraction form
715,247.14/987,051.96 = 392,963.53/x - Step 3: Cross multiply
715,247.14x = 987,051.96 × 392,963.53 - Step 4: Simplify right side
715,247.14x = 387,875,422,495.02 - Step 5: Solve for x
x = 387,875,422,495.02/715,247.14 - Step 6: Final answer
x = 542,295.66
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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.