Finding the Fourth Proportional to 641,276.16, 884,355.84 and 478,292.88
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Solution
The fourth proportional to 641,276.16, 884,355.84 and 478,292.88 is: 659,592.74
Step by Step Solution
- Step 1: Write the proportion equation
641,276.16 : 884,355.84 = 478,292.88 : x - Step 2: Convert to fraction form
641,276.16/884,355.84 = 478,292.88/x - Step 3: Cross multiply
641,276.16x = 884,355.84 × 478,292.88 - Step 4: Simplify right side
641,276.16x = 422,981,101,658.42 - Step 5: Solve for x
x = 422,981,101,658.42/641,276.16 - Step 6: Final answer
x = 659,592.74
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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.