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Finding the Fourth Proportional to 2,662,857.16, 3,993,892.08 and 979,567

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Solution

The fourth proportional to 2,662,857.16, 3,993,892.08 and 979,567 is: 1,469,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,857.16 : 3,993,892.08 = 979,567 : x
  2. Step 2: Convert to fraction form
    2,662,857.16/3,993,892.08 = 979,567/x
  3. Step 3: Cross multiply
    2,662,857.16x = 3,993,892.08 × 979,567
  4. Step 4: Simplify right side
    2,662,857.16x = 3,912,284,883,129.36
  5. Step 5: Solve for x
    x = 3,912,284,883,129.36/2,662,857.16
  6. Step 6: Final answer
    x = 1,469,205.69

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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.