Home / 1,661,072.85-2,489,665.57-762,601.31

Finding the Fourth Proportional to 1,661,072.85, 2,489,665.57 and 762,601.31

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Solution

The fourth proportional to 1,661,072.85, 2,489,665.57 and 762,601.31 is: 1,143,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,072.85 : 2,489,665.57 = 762,601.31 : x
  2. Step 2: Convert to fraction form
    1,661,072.85/2,489,665.57 = 762,601.31/x
  3. Step 3: Cross multiply
    1,661,072.85x = 2,489,665.57 × 762,601.31
  4. Step 4: Simplify right side
    1,661,072.85x = 1,898,622,225,143.90
  5. Step 5: Solve for x
    x = 1,898,622,225,143.90/1,661,072.85
  6. Step 6: Final answer
    x = 1,143,009.61

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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.