Home / 1,268,008.47-1,749,872.83-687,250.15

Finding the Fourth Proportional to 1,268,008.47, 1,749,872.83 and 687,250.15

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Solution

The fourth proportional to 1,268,008.47, 1,749,872.83 and 687,250.15 is: 948,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,008.47 : 1,749,872.83 = 687,250.15 : x
  2. Step 2: Convert to fraction form
    1,268,008.47/1,749,872.83 = 687,250.15/x
  3. Step 3: Cross multiply
    1,268,008.47x = 1,749,872.83 × 687,250.15
  4. Step 4: Simplify right side
    1,268,008.47x = 1,202,600,356,149.06
  5. Step 5: Solve for x
    x = 1,202,600,356,149.06/1,268,008.47
  6. Step 6: Final answer
    x = 948,416.66

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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.