Home / 394,079.07-591,201.72-127,818.91

Finding the Fourth Proportional to 394,079.07, 591,201.72 and 127,818.91

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Solution

The fourth proportional to 394,079.07, 591,201.72 and 127,818.91 is: 191,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,079.07 : 591,201.72 = 127,818.91 : x
  2. Step 2: Convert to fraction form
    394,079.07/591,201.72 = 127,818.91/x
  3. Step 3: Cross multiply
    394,079.07x = 591,201.72 × 127,818.91
  4. Step 4: Simplify right side
    394,079.07x = 75,566,757,962.52
  5. Step 5: Solve for x
    x = 75,566,757,962.52/394,079.07
  6. Step 6: Final answer
    x = 191,755.32

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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.