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Finding the Fourth Proportional to 635,517.64, 953,275.08 and 399,026.38

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Solution

The fourth proportional to 635,517.64, 953,275.08 and 399,026.38 is: 598,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,517.64 : 953,275.08 = 399,026.38 : x
  2. Step 2: Convert to fraction form
    635,517.64/953,275.08 = 399,026.38/x
  3. Step 3: Cross multiply
    635,517.64x = 953,275.08 × 399,026.38
  4. Step 4: Simplify right side
    635,517.64x = 380,381,904,316.61
  5. Step 5: Solve for x
    x = 380,381,904,316.61/635,517.64
  6. Step 6: Final answer
    x = 598,538.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.