Home / 1,268,010.24-1,749,875.28-687,251.91

Finding the Fourth Proportional to 1,268,010.24, 1,749,875.28 and 687,251.91

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Solution

The fourth proportional to 1,268,010.24, 1,749,875.28 and 687,251.91 is: 948,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,010.24 : 1,749,875.28 = 687,251.91 : x
  2. Step 2: Convert to fraction form
    1,268,010.24/1,749,875.28 = 687,251.91/x
  3. Step 3: Cross multiply
    1,268,010.24x = 1,749,875.28 × 687,251.91
  4. Step 4: Simplify right side
    1,268,010.24x = 1,202,605,128,441.78
  5. Step 5: Solve for x
    x = 1,202,605,128,441.78/1,268,010.24
  6. Step 6: Final answer
    x = 948,419.10

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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.