Home / 725,694.20-1,088,022.90-326,007.80

Finding the Fourth Proportional to 725,694.20, 1,088,022.90 and 326,007.80

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Solution

The fourth proportional to 725,694.20, 1,088,022.90 and 326,007.80 is: 488,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,694.20 : 1,088,022.90 = 326,007.80 : x
  2. Step 2: Convert to fraction form
    725,694.20/1,088,022.90 = 326,007.80/x
  3. Step 3: Cross multiply
    725,694.20x = 1,088,022.90 × 326,007.80
  4. Step 4: Simplify right side
    725,694.20x = 354,703,951,978.62
  5. Step 5: Solve for x
    x = 354,703,951,978.62/725,694.20
  6. Step 6: Final answer
    x = 488,778.82

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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.