Home / 1,436,078.87-1,981,800.90-791,500.71

Finding the Fourth Proportional to 1,436,078.87, 1,981,800.90 and 791,500.71

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Solution

The fourth proportional to 1,436,078.87, 1,981,800.90 and 791,500.71 is: 1,092,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,078.87 : 1,981,800.90 = 791,500.71 : x
  2. Step 2: Convert to fraction form
    1,436,078.87/1,981,800.90 = 791,500.71/x
  3. Step 3: Cross multiply
    1,436,078.87x = 1,981,800.90 × 791,500.71
  4. Step 4: Simplify right side
    1,436,078.87x = 1,568,596,815,471.14
  5. Step 5: Solve for x
    x = 1,568,596,815,471.14/1,436,078.87
  6. Step 6: Final answer
    x = 1,092,277.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.