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Finding the Fourth Proportional to 1,647,661.08, 2,469,747.78 and 749,733.36

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Solution

The fourth proportional to 1,647,661.08, 2,469,747.78 and 749,733.36 is: 1,123,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,661.08 : 2,469,747.78 = 749,733.36 : x
  2. Step 2: Convert to fraction form
    1,647,661.08/2,469,747.78 = 749,733.36/x
  3. Step 3: Cross multiply
    1,647,661.08x = 2,469,747.78 × 749,733.36
  4. Step 4: Simplify right side
    1,647,661.08x = 1,851,652,301,451.94
  5. Step 5: Solve for x
    x = 1,851,652,301,451.94/1,647,661.08
  6. Step 6: Final answer
    x = 1,123,806.54

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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.