Home / 2,661,299.40-3,991,949.10-978,184.20

Finding the Fourth Proportional to 2,661,299.40, 3,991,949.10 and 978,184.20

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Solution

The fourth proportional to 2,661,299.40, 3,991,949.10 and 978,184.20 is: 1,467,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,299.40 : 3,991,949.10 = 978,184.20 : x
  2. Step 2: Convert to fraction form
    2,661,299.40/3,991,949.10 = 978,184.20/x
  3. Step 3: Cross multiply
    2,661,299.40x = 3,991,949.10 × 978,184.20
  4. Step 4: Simplify right side
    2,661,299.40x = 3,904,861,536,824.22
  5. Step 5: Solve for x
    x = 3,904,861,536,824.22/2,661,299.40
  6. Step 6: Final answer
    x = 1,467,276.30

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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.