Finding the Fourth Proportional to 726,141.24, 1,002,069.35 and 399,447.21
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Solution
The fourth proportional to 726,141.24, 1,002,069.35 and 399,447.21 is: 551,234.08
Step by Step Solution
- Step 1: Write the proportion equation
726,141.24 : 1,002,069.35 = 399,447.21 : x - Step 2: Convert to fraction form
726,141.24/1,002,069.35 = 399,447.21/x - Step 3: Cross multiply
726,141.24x = 1,002,069.35 × 399,447.21 - Step 4: Simplify right side
726,141.24x = 400,273,802,010.95 - Step 5: Solve for x
x = 400,273,802,010.95/726,141.24 - Step 6: Final answer
x = 551,234.08
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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.