Home / 1,288,163.10-1,932,244.65-728,291.10

Finding the Fourth Proportional to 1,288,163.10, 1,932,244.65 and 728,291.10

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Solution

The fourth proportional to 1,288,163.10, 1,932,244.65 and 728,291.10 is: 1,092,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,163.10 : 1,932,244.65 = 728,291.10 : x
  2. Step 2: Convert to fraction form
    1,288,163.10/1,932,244.65 = 728,291.10/x
  3. Step 3: Cross multiply
    1,288,163.10x = 1,932,244.65 × 728,291.10
  4. Step 4: Simplify right side
    1,288,163.10x = 1,407,236,581,617.62
  5. Step 5: Solve for x
    x = 1,407,236,581,617.62/1,288,163.10
  6. Step 6: Final answer
    x = 1,092,436.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.