Home / 725,691.45-1,088,540.65-220,256.81

Finding the Fourth Proportional to 725,691.45, 1,088,540.65 and 220,256.81

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Solution

The fourth proportional to 725,691.45, 1,088,540.65 and 220,256.81 is: 330,386.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,691.45 : 1,088,540.65 = 220,256.81 : x
  2. Step 2: Convert to fraction form
    725,691.45/1,088,540.65 = 220,256.81/x
  3. Step 3: Cross multiply
    725,691.45x = 1,088,540.65 × 220,256.81
  4. Step 4: Simplify right side
    725,691.45x = 239,758,490,023.04
  5. Step 5: Solve for x
    x = 239,758,490,023.04/725,691.45
  6. Step 6: Final answer
    x = 330,386.27

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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.