Home / 1,291,147.44-1,781,757.24-718,175.28

Finding the Fourth Proportional to 1,291,147.44, 1,781,757.24 and 718,175.28

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Solution

The fourth proportional to 1,291,147.44, 1,781,757.24 and 718,175.28 is: 991,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,147.44 : 1,781,757.24 = 718,175.28 : x
  2. Step 2: Convert to fraction form
    1,291,147.44/1,781,757.24 = 718,175.28/x
  3. Step 3: Cross multiply
    1,291,147.44x = 1,781,757.24 × 718,175.28
  4. Step 4: Simplify right side
    1,291,147.44x = 1,279,614,004,729.03
  5. Step 5: Solve for x
    x = 1,279,614,004,729.03/1,291,147.44
  6. Step 6: Final answer
    x = 991,067.30

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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.