Home / 394,079.31-591,202.04-127,819.12

Finding the Fourth Proportional to 394,079.31, 591,202.04 and 127,819.12

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Solution

The fourth proportional to 394,079.31, 591,202.04 and 127,819.12 is: 191,755.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,079.31 : 591,202.04 = 127,819.12 : x
  2. Step 2: Convert to fraction form
    394,079.31/591,202.04 = 127,819.12/x
  3. Step 3: Cross multiply
    394,079.31x = 591,202.04 × 127,819.12
  4. Step 4: Simplify right side
    394,079.31x = 75,566,924,495.00
  5. Step 5: Solve for x
    x = 75,566,924,495.00/394,079.31
  6. Step 6: Final answer
    x = 191,755.63

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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.