Home / 981,106.80-1,472,227.74-412,442.88

Finding the Fourth Proportional to 981,106.80, 1,472,227.74 and 412,442.88

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Solution

The fourth proportional to 981,106.80, 1,472,227.74 and 412,442.88 is: 618,902.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,106.80 : 1,472,227.74 = 412,442.88 : x
  2. Step 2: Convert to fraction form
    981,106.80/1,472,227.74 = 412,442.88/x
  3. Step 3: Cross multiply
    981,106.80x = 1,472,227.74 × 412,442.88
  4. Step 4: Simplify right side
    981,106.80x = 607,209,849,101.49
  5. Step 5: Solve for x
    x = 607,209,849,101.49/981,106.80
  6. Step 6: Final answer
    x = 618,902.91

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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.