Home / 725,778.50-1,088,864.64-220,355.91

Finding the Fourth Proportional to 725,778.50, 1,088,864.64 and 220,355.91

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Solution

The fourth proportional to 725,778.50, 1,088,864.64 and 220,355.91 is: 330,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,778.50 : 1,088,864.64 = 220,355.91 : x
  2. Step 2: Convert to fraction form
    725,778.50/1,088,864.64 = 220,355.91/x
  3. Step 3: Cross multiply
    725,778.50x = 1,088,864.64 × 220,355.91
  4. Step 4: Simplify right side
    725,778.50x = 239,937,758,614.02
  5. Step 5: Solve for x
    x = 239,937,758,614.02/725,778.50
  6. Step 6: Final answer
    x = 330,593.65

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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.