Home / 981,306.30-1,470,793.05-412,686.30

Finding the Fourth Proportional to 981,306.30, 1,470,793.05 and 412,686.30

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Solution

The fourth proportional to 981,306.30, 1,470,793.05 and 412,686.30 is: 618,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,306.30 : 1,470,793.05 = 412,686.30 : x
  2. Step 2: Convert to fraction form
    981,306.30/1,470,793.05 = 412,686.30/x
  3. Step 3: Cross multiply
    981,306.30x = 1,470,793.05 × 412,686.30
  4. Step 4: Simplify right side
    981,306.30x = 606,976,141,870.22
  5. Step 5: Solve for x
    x = 606,976,141,870.22/981,306.30
  6. Step 6: Final answer
    x = 618,538.92

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1.5x scale

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.