Home / 1,987,778.88-2,743,139.52-1,082,419.20

Finding the Fourth Proportional to 1,987,778.88, 2,743,139.52 and 1,082,419.20

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Solution

The fourth proportional to 1,987,778.88, 2,743,139.52 and 1,082,419.20 is: 1,493,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,778.88 : 2,743,139.52 = 1,082,419.20 : x
  2. Step 2: Convert to fraction form
    1,987,778.88/2,743,139.52 = 1,082,419.20/x
  3. Step 3: Cross multiply
    1,987,778.88x = 2,743,139.52 × 1,082,419.20
  4. Step 4: Simplify right side
    1,987,778.88x = 2,969,226,884,726.78
  5. Step 5: Solve for x
    x = 2,969,226,884,726.78/1,987,778.88
  6. Step 6: Final answer
    x = 1,493,741.04

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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.