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Finding the Fourth Proportional to 635,398.64, 876,929.20 and 363,428.88

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Solution

The fourth proportional to 635,398.64, 876,929.20 and 363,428.88 is: 501,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,398.64 : 876,929.20 = 363,428.88 : x
  2. Step 2: Convert to fraction form
    635,398.64/876,929.20 = 363,428.88/x
  3. Step 3: Cross multiply
    635,398.64x = 876,929.20 × 363,428.88
  4. Step 4: Simplify right side
    635,398.64x = 318,701,396,995.30
  5. Step 5: Solve for x
    x = 318,701,396,995.30/635,398.64
  6. Step 6: Final answer
    x = 501,577.08

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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.