Finding the Fourth Proportional to 726,166.18, 1,002,103.68 and 399,472.12
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Solution
The fourth proportional to 726,166.18, 1,002,103.68 and 399,472.12 is: 551,268.42
Step by Step Solution
- Step 1: Write the proportion equation
726,166.18 : 1,002,103.68 = 399,472.12 : x - Step 2: Convert to fraction form
726,166.18/1,002,103.68 = 399,472.12/x - Step 3: Cross multiply
726,166.18x = 1,002,103.68 × 399,472.12 - Step 4: Simplify right side
726,166.18x = 400,312,481,509.40 - Step 5: Solve for x
x = 400,312,481,509.40/726,166.18 - Step 6: Final answer
x = 551,268.42
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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.