Finding the Fourth Proportional to 478,455.93, 660,132.18 and 284,701.70
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Solution
The fourth proportional to 478,455.93, 660,132.18 and 284,701.70 is: 392,806.83
Step by Step Solution
- Step 1: Write the proportion equation
478,455.93 : 660,132.18 = 284,701.70 : x - Step 2: Convert to fraction form
478,455.93/660,132.18 = 284,701.70/x - Step 3: Cross multiply
478,455.93x = 660,132.18 × 284,701.70 - Step 4: Simplify right side
478,455.93x = 187,940,755,521.04 - Step 5: Solve for x
x = 187,940,755,521.04/478,455.93 - Step 6: Final answer
x = 392,806.83
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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.