Home / 1,129,452.30-1,558,193.43-721,448.31

Finding the Fourth Proportional to 1,129,452.30, 1,558,193.43 and 721,448.31

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Solution

The fourth proportional to 1,129,452.30, 1,558,193.43 and 721,448.31 is: 995,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,452.30 : 1,558,193.43 = 721,448.31 : x
  2. Step 2: Convert to fraction form
    1,129,452.30/1,558,193.43 = 721,448.31/x
  3. Step 3: Cross multiply
    1,129,452.30x = 1,558,193.43 × 721,448.31
  4. Step 4: Simplify right side
    1,129,452.30x = 1,124,156,016,726.60
  5. Step 5: Solve for x
    x = 1,124,156,016,726.60/1,129,452.30
  6. Step 6: Final answer
    x = 995,310.75

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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.