Home / 981,602.20-1,472,403.30-664,341.40

Finding the Fourth Proportional to 981,602.20, 1,472,403.30 and 664,341.40

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Solution

The fourth proportional to 981,602.20, 1,472,403.30 and 664,341.40 is: 996,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,602.20 : 1,472,403.30 = 664,341.40 : x
  2. Step 2: Convert to fraction form
    981,602.20/1,472,403.30 = 664,341.40/x
  3. Step 3: Cross multiply
    981,602.20x = 1,472,403.30 × 664,341.40
  4. Step 4: Simplify right side
    981,602.20x = 978,178,469,686.62
  5. Step 5: Solve for x
    x = 978,178,469,686.62/981,602.20
  6. Step 6: Final answer
    x = 996,512.10

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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.