Home / 981,385.60-1,472,078.40-910,526.80

Finding the Fourth Proportional to 981,385.60, 1,472,078.40 and 910,526.80

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Solution

The fourth proportional to 981,385.60, 1,472,078.40 and 910,526.80 is: 1,365,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,385.60 : 1,472,078.40 = 910,526.80 : x
  2. Step 2: Convert to fraction form
    981,385.60/1,472,078.40 = 910,526.80/x
  3. Step 3: Cross multiply
    981,385.60x = 1,472,078.40 × 910,526.80
  4. Step 4: Simplify right side
    981,385.60x = 1,340,366,834,901.12
  5. Step 5: Solve for x
    x = 1,340,366,834,901.12/981,385.60
  6. Step 6: Final answer
    x = 1,365,790.20

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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.