Home / 1,268,203.38-1,750,073.76-687,414.03

Finding the Fourth Proportional to 1,268,203.38, 1,750,073.76 and 687,414.03

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Solution

The fourth proportional to 1,268,203.38, 1,750,073.76 and 687,414.03 is: 948,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,203.38 : 1,750,073.76 = 687,414.03 : x
  2. Step 2: Convert to fraction form
    1,268,203.38/1,750,073.76 = 687,414.03/x
  3. Step 3: Cross multiply
    1,268,203.38x = 1,750,073.76 × 687,414.03
  4. Step 4: Simplify right side
    1,268,203.38x = 1,203,025,256,158.85
  5. Step 5: Solve for x
    x = 1,203,025,256,158.85/1,268,203.38
  6. Step 6: Final answer
    x = 948,605.94

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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.