Home / 394,021.26-591,105.69-127,747.17

Finding the Fourth Proportional to 394,021.26, 591,105.69 and 127,747.17

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Solution

The fourth proportional to 394,021.26, 591,105.69 and 127,747.17 is: 191,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,021.26 : 591,105.69 = 127,747.17 : x
  2. Step 2: Convert to fraction form
    394,021.26/591,105.69 = 127,747.17/x
  3. Step 3: Cross multiply
    394,021.26x = 591,105.69 × 127,747.17
  4. Step 4: Simplify right side
    394,021.26x = 75,512,079,068.40
  5. Step 5: Solve for x
    x = 75,512,079,068.40/394,021.26
  6. Step 6: Final answer
    x = 191,644.68

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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.