Home / 1,268,233.31-1,750,155.45-687,454.20

Finding the Fourth Proportional to 1,268,233.31, 1,750,155.45 and 687,454.20

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Solution

The fourth proportional to 1,268,233.31, 1,750,155.45 and 687,454.20 is: 948,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,233.31 : 1,750,155.45 = 687,454.20 : x
  2. Step 2: Convert to fraction form
    1,268,233.31/1,750,155.45 = 687,454.20/x
  3. Step 3: Cross multiply
    1,268,233.31x = 1,750,155.45 × 687,454.20
  4. Step 4: Simplify right side
    1,268,233.31x = 1,203,151,714,755.39
  5. Step 5: Solve for x
    x = 1,203,151,714,755.39/1,268,233.31
  6. Step 6: Final answer
    x = 948,683.27

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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.