Home / 1,227,939.50-1,694,671.13-718,642.28

Finding the Fourth Proportional to 1,227,939.50, 1,694,671.13 and 718,642.28

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Solution

The fourth proportional to 1,227,939.50, 1,694,671.13 and 718,642.28 is: 991,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,939.50 : 1,694,671.13 = 718,642.28 : x
  2. Step 2: Convert to fraction form
    1,227,939.50/1,694,671.13 = 718,642.28/x
  3. Step 3: Cross multiply
    1,227,939.50x = 1,694,671.13 × 718,642.28
  4. Step 4: Simplify right side
    1,227,939.50x = 1,217,862,321,120.17
  5. Step 5: Solve for x
    x = 1,217,862,321,120.17/1,227,939.50
  6. Step 6: Final answer
    x = 991,793.42

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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.