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Finding the Fourth Proportional to 639,327.54, 959,272.10 and 335,651.13

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Solution

The fourth proportional to 639,327.54, 959,272.10 and 335,651.13 is: 503,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,327.54 : 959,272.10 = 335,651.13 : x
  2. Step 2: Convert to fraction form
    639,327.54/959,272.10 = 335,651.13/x
  3. Step 3: Cross multiply
    639,327.54x = 959,272.10 × 335,651.13
  4. Step 4: Simplify right side
    639,327.54x = 321,980,768,644.33
  5. Step 5: Solve for x
    x = 321,980,768,644.33/639,327.54
  6. Step 6: Final answer
    x = 503,624.12

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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.