Home / 981,523.20-1,471,766.40-419,923.20

Finding the Fourth Proportional to 981,523.20, 1,471,766.40 and 419,923.20

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Solution

The fourth proportional to 981,523.20, 1,471,766.40 and 419,923.20 is: 629,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,523.20 : 1,471,766.40 = 419,923.20 : x
  2. Step 2: Convert to fraction form
    981,523.20/1,471,766.40 = 419,923.20/x
  3. Step 3: Cross multiply
    981,523.20x = 1,471,766.40 × 419,923.20
  4. Step 4: Simplify right side
    981,523.20x = 618,028,856,340.48
  5. Step 5: Solve for x
    x = 618,028,856,340.48/981,523.20
  6. Step 6: Final answer
    x = 629,663.01

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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.