Home / 1,268,007.22-1,749,871.10-687,248.90

Finding the Fourth Proportional to 1,268,007.22, 1,749,871.10 and 687,248.90

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Solution

The fourth proportional to 1,268,007.22, 1,749,871.10 and 687,248.90 is: 948,414.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,007.22 : 1,749,871.10 = 687,248.90 : x
  2. Step 2: Convert to fraction form
    1,268,007.22/1,749,871.10 = 687,248.90/x
  3. Step 3: Cross multiply
    1,268,007.22x = 1,749,871.10 × 687,248.90
  4. Step 4: Simplify right side
    1,268,007.22x = 1,202,596,981,585.56
  5. Step 5: Solve for x
    x = 1,202,596,981,585.56/1,268,007.22
  6. Step 6: Final answer
    x = 948,414.93

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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.