Home / 4,981,782-7,472,680.20-1,387,559.28

Finding the Fourth Proportional to 4,981,782, 7,472,680.20 and 1,387,559.28

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Solution

The fourth proportional to 4,981,782, 7,472,680.20 and 1,387,559.28 is: 2,081,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981,782 : 7,472,680.20 = 1,387,559.28 : x
  2. Step 2: Convert to fraction form
    4,981,782/7,472,680.20 = 1,387,559.28/x
  3. Step 3: Cross multiply
    4,981,782x = 7,472,680.20 × 1,387,559.28
  4. Step 4: Simplify right side
    4,981,782x = 10,368,786,757,982.26
  5. Step 5: Solve for x
    x = 10,368,786,757,982.26/4,981,782
  6. Step 6: Final answer
    x = 2,081,340.93

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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.