Home / 392,579.22-588,869.01-126,339.70

Finding the Fourth Proportional to 392,579.22, 588,869.01 and 126,339.70

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Solution

The fourth proportional to 392,579.22, 588,869.01 and 126,339.70 is: 189,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,579.22 : 588,869.01 = 126,339.70 : x
  2. Step 2: Convert to fraction form
    392,579.22/588,869.01 = 126,339.70/x
  3. Step 3: Cross multiply
    392,579.22x = 588,869.01 × 126,339.70
  4. Step 4: Simplify right side
    392,579.22x = 74,397,534,062.70
  5. Step 5: Solve for x
    x = 74,397,534,062.70/392,579.22
  6. Step 6: Final answer
    x = 189,509.61

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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.