Home / 2,187,147.30-3,279,736.80-838,861.80

Finding the Fourth Proportional to 2,187,147.30, 3,279,736.80 and 838,861.80

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Solution

The fourth proportional to 2,187,147.30, 3,279,736.80 and 838,861.80 is: 1,257,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,147.30 : 3,279,736.80 = 838,861.80 : x
  2. Step 2: Convert to fraction form
    2,187,147.30/3,279,736.80 = 838,861.80/x
  3. Step 3: Cross multiply
    2,187,147.30x = 3,279,736.80 × 838,861.80
  4. Step 4: Simplify right side
    2,187,147.30x = 2,751,245,915,574.24
  5. Step 5: Solve for x
    x = 2,751,245,915,574.24/2,187,147.30
  6. Step 6: Final answer
    x = 1,257,915.24

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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.