Home / 2,661,440.10-3,991,285.35-978,324.90

Finding the Fourth Proportional to 2,661,440.10, 3,991,285.35 and 978,324.90

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Solution

The fourth proportional to 2,661,440.10, 3,991,285.35 and 978,324.90 is: 1,467,165.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,440.10 : 3,991,285.35 = 978,324.90 : x
  2. Step 2: Convert to fraction form
    2,661,440.10/3,991,285.35 = 978,324.90/x
  3. Step 3: Cross multiply
    2,661,440.10x = 3,991,285.35 × 978,324.90
  4. Step 4: Simplify right side
    2,661,440.10x = 3,904,773,840,910.22
  5. Step 5: Solve for x
    x = 3,904,773,840,910.22/2,661,440.10
  6. Step 6: Final answer
    x = 1,467,165.78

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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.