Home / 1,996,717.20-2,990,863.80-1,323,121.20

Finding the Fourth Proportional to 1,996,717.20, 2,990,863.80 and 1,323,121.20

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Solution

The fourth proportional to 1,996,717.20, 2,990,863.80 and 1,323,121.20 is: 1,981,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996,717.20 : 2,990,863.80 = 1,323,121.20 : x
  2. Step 2: Convert to fraction form
    1,996,717.20/2,990,863.80 = 1,323,121.20/x
  3. Step 3: Cross multiply
    1,996,717.20x = 2,990,863.80 × 1,323,121.20
  4. Step 4: Simplify right side
    1,996,717.20x = 3,957,275,300,092.56
  5. Step 5: Solve for x
    x = 3,957,275,300,092.56/1,996,717.20
  6. Step 6: Final answer
    x = 1,981,890.73

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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.