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Finding the Fourth Proportional to 639,326.61, 958,882.98 and 234,435.15

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Solution

The fourth proportional to 639,326.61, 958,882.98 and 234,435.15 is: 351,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,326.61 : 958,882.98 = 234,435.15 : x
  2. Step 2: Convert to fraction form
    639,326.61/958,882.98 = 234,435.15/x
  3. Step 3: Cross multiply
    639,326.61x = 958,882.98 × 234,435.15
  4. Step 4: Simplify right side
    639,326.61x = 224,795,875,248.75
  5. Step 5: Solve for x
    x = 224,795,875,248.75/639,326.61
  6. Step 6: Final answer
    x = 351,613.51

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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.