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Finding the Fourth Proportional to 488,259.90, 731,952.45 and 319,860.90

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Solution

The fourth proportional to 488,259.90, 731,952.45 and 319,860.90 is: 479,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,259.90 : 731,952.45 = 319,860.90 : x
  2. Step 2: Convert to fraction form
    488,259.90/731,952.45 = 319,860.90/x
  3. Step 3: Cross multiply
    488,259.90x = 731,952.45 × 319,860.90
  4. Step 4: Simplify right side
    488,259.90x = 234,122,969,414.21
  5. Step 5: Solve for x
    x = 234,122,969,414.21/488,259.90
  6. Step 6: Final answer
    x = 479,504.81

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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.