Home / 1,245,551.20-1,718,987.65-762,435.61

Finding the Fourth Proportional to 1,245,551.20, 1,718,987.65 and 762,435.61

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Solution

The fourth proportional to 1,245,551.20, 1,718,987.65 and 762,435.61 is: 1,052,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,551.20 : 1,718,987.65 = 762,435.61 : x
  2. Step 2: Convert to fraction form
    1,245,551.20/1,718,987.65 = 762,435.61/x
  3. Step 3: Cross multiply
    1,245,551.20x = 1,718,987.65 × 762,435.61
  4. Step 4: Simplify right side
    1,245,551.20x = 1,310,617,391,306.66
  5. Step 5: Solve for x
    x = 1,310,617,391,306.66/1,245,551.20
  6. Step 6: Final answer
    x = 1,052,238.88

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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.