Home / 1,661,617.80-2,491,697.70-762,760.80

Finding the Fourth Proportional to 1,661,617.80, 2,491,697.70 and 762,760.80

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Solution

The fourth proportional to 1,661,617.80, 2,491,697.70 and 762,760.80 is: 1,143,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,617.80 : 2,491,697.70 = 762,760.80 : x
  2. Step 2: Convert to fraction form
    1,661,617.80/2,491,697.70 = 762,760.80/x
  3. Step 3: Cross multiply
    1,661,617.80x = 2,491,697.70 × 762,760.80
  4. Step 4: Simplify right side
    1,661,617.80x = 1,900,569,331,010.16
  5. Step 5: Solve for x
    x = 1,900,569,331,010.16/1,661,617.80
  6. Step 6: Final answer
    x = 1,143,806.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.