Home / 1,981,279.56-2,734,167.42-1,121,841.18

Finding the Fourth Proportional to 1,981,279.56, 2,734,167.42 and 1,121,841.18

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Solution

The fourth proportional to 1,981,279.56, 2,734,167.42 and 1,121,841.18 is: 1,548,141.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,279.56 : 2,734,167.42 = 1,121,841.18 : x
  2. Step 2: Convert to fraction form
    1,981,279.56/2,734,167.42 = 1,121,841.18/x
  3. Step 3: Cross multiply
    1,981,279.56x = 2,734,167.42 × 1,121,841.18
  4. Step 4: Simplify right side
    1,981,279.56x = 3,067,301,604,770.36
  5. Step 5: Solve for x
    x = 3,067,301,604,770.36/1,981,279.56
  6. Step 6: Final answer
    x = 1,548,141.75

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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.