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Finding the Fourth Proportional to 635,814.36, 877,372.91 and 363,819.90

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Solution

The fourth proportional to 635,814.36, 877,372.91 and 363,819.90 is: 502,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,814.36 : 877,372.91 = 363,819.90 : x
  2. Step 2: Convert to fraction form
    635,814.36/877,372.91 = 363,819.90/x
  3. Step 3: Cross multiply
    635,814.36x = 877,372.91 × 363,819.90
  4. Step 4: Simplify right side
    635,814.36x = 319,205,729,260.77
  5. Step 5: Solve for x
    x = 319,205,729,260.77/635,814.36
  6. Step 6: Final answer
    x = 502,042.34

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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.