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Finding the Fourth Proportional to 528,034.70, 792,052.05 and 317,909.90

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Solution

The fourth proportional to 528,034.70, 792,052.05 and 317,909.90 is: 476,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,034.70 : 792,052.05 = 317,909.90 : x
  2. Step 2: Convert to fraction form
    528,034.70/792,052.05 = 317,909.90/x
  3. Step 3: Cross multiply
    528,034.70x = 792,052.05 × 317,909.90
  4. Step 4: Simplify right side
    528,034.70x = 251,801,188,010.30
  5. Step 5: Solve for x
    x = 251,801,188,010.30/528,034.70
  6. Step 6: Final answer
    x = 476,864.85

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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.