Home / 725,691.32-1,088,540.46-220,256.69

Finding the Fourth Proportional to 725,691.32, 1,088,540.46 and 220,256.69

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Solution

The fourth proportional to 725,691.32, 1,088,540.46 and 220,256.69 is: 330,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,691.32 : 1,088,540.46 = 220,256.69 : x
  2. Step 2: Convert to fraction form
    725,691.32/1,088,540.46 = 220,256.69/x
  3. Step 3: Cross multiply
    725,691.32x = 1,088,540.46 × 220,256.69
  4. Step 4: Simplify right side
    725,691.32x = 239,758,313,207.98
  5. Step 5: Solve for x
    x = 239,758,313,207.98/725,691.32
  6. Step 6: Final answer
    x = 330,386.08

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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.