Home / 394,102.47-591,236.73-127,842.20

Finding the Fourth Proportional to 394,102.47, 591,236.73 and 127,842.20

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Solution

The fourth proportional to 394,102.47, 591,236.73 and 127,842.20 is: 191,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,102.47 : 591,236.73 = 127,842.20 : x
  2. Step 2: Convert to fraction form
    394,102.47/591,236.73 = 127,842.20/x
  3. Step 3: Cross multiply
    394,102.47x = 591,236.73 × 127,842.20
  4. Step 4: Simplify right side
    394,102.47x = 75,585,001,327.82
  5. Step 5: Solve for x
    x = 75,585,001,327.82/394,102.47
  6. Step 6: Final answer
    x = 191,790.22

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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.