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Finding the Fourth Proportional to 635,729.42, 877,355.78 and 363,882.59

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Solution

The fourth proportional to 635,729.42, 877,355.78 and 363,882.59 is: 502,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,729.42 : 877,355.78 = 363,882.59 : x
  2. Step 2: Convert to fraction form
    635,729.42/877,355.78 = 363,882.59/x
  3. Step 3: Cross multiply
    635,729.42x = 877,355.78 × 363,882.59
  4. Step 4: Simplify right side
    635,729.42x = 319,254,493,951.85
  5. Step 5: Solve for x
    x = 319,254,493,951.85/635,729.42
  6. Step 6: Final answer
    x = 502,186.13

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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.