Home / 1,136,286.11-1,568,073.98-728,387.73

Finding the Fourth Proportional to 1,136,286.11, 1,568,073.98 and 728,387.73

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Solution

The fourth proportional to 1,136,286.11, 1,568,073.98 and 728,387.73 is: 1,005,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,286.11 : 1,568,073.98 = 728,387.73 : x
  2. Step 2: Convert to fraction form
    1,136,286.11/1,568,073.98 = 728,387.73/x
  3. Step 3: Cross multiply
    1,136,286.11x = 1,568,073.98 × 728,387.73
  4. Step 4: Simplify right side
    1,136,286.11x = 1,142,165,843,122.33
  5. Step 5: Solve for x
    x = 1,142,165,843,122.33/1,136,286.11
  6. Step 6: Final answer
    x = 1,005,174.52

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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.