Home / 394,105.47-591,241.23-127,845.20

Finding the Fourth Proportional to 394,105.47, 591,241.23 and 127,845.20

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Solution

The fourth proportional to 394,105.47, 591,241.23 and 127,845.20 is: 191,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,105.47 : 591,241.23 = 127,845.20 : x
  2. Step 2: Convert to fraction form
    394,105.47/591,241.23 = 127,845.20/x
  3. Step 3: Cross multiply
    394,105.47x = 591,241.23 × 127,845.20
  4. Step 4: Simplify right side
    394,105.47x = 75,587,350,341.39
  5. Step 5: Solve for x
    x = 75,587,350,341.39/394,105.47
  6. Step 6: Final answer
    x = 191,794.73

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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.