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Finding the Fourth Proportional to 635,861.26, 877,504.35 and 345,472.91

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Solution

The fourth proportional to 635,861.26, 877,504.35 and 345,472.91 is: 476,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,861.26 : 877,504.35 = 345,472.91 : x
  2. Step 2: Convert to fraction form
    635,861.26/877,504.35 = 345,472.91/x
  3. Step 3: Cross multiply
    635,861.26x = 877,504.35 × 345,472.91
  4. Step 4: Simplify right side
    635,861.26x = 303,153,981,332.16
  5. Step 5: Solve for x
    x = 303,153,981,332.16/635,861.26
  6. Step 6: Final answer
    x = 476,761.21

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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.