Finding the Fourth Proportional to 726,472.99, 1,002,507.50 and 399,755.44
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Solution
The fourth proportional to 726,472.99, 1,002,507.50 and 399,755.44 is: 551,648.62
Step by Step Solution
- Step 1: Write the proportion equation
726,472.99 : 1,002,507.50 = 399,755.44 : x - Step 2: Convert to fraction form
726,472.99/1,002,507.50 = 399,755.44/x - Step 3: Cross multiply
726,472.99x = 1,002,507.50 × 399,755.44 - Step 4: Simplify right side
726,472.99x = 400,757,819,754.49 - Step 5: Solve for x
x = 400,757,819,754.49/726,472.99 - Step 6: Final answer
x = 551,648.62
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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.