Home / 981,627.20-1,472,454.40-646,811.20

Finding the Fourth Proportional to 981,627.20, 1,472,454.40 and 646,811.20

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Solution

The fourth proportional to 981,627.20, 1,472,454.40 and 646,811.20 is: 970,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,627.20 : 1,472,454.40 = 646,811.20 : x
  2. Step 2: Convert to fraction form
    981,627.20/1,472,454.40 = 646,811.20/x
  3. Step 3: Cross multiply
    981,627.20x = 1,472,454.40 × 646,811.20
  4. Step 4: Simplify right side
    981,627.20x = 952,399,997,409.28
  5. Step 5: Solve for x
    x = 952,399,997,409.28/981,627.20
  6. Step 6: Final answer
    x = 970,225.76

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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.