Home / 2,668,906.20-4,003,359.30-1,321,276.80

Finding the Fourth Proportional to 2,668,906.20, 4,003,359.30 and 1,321,276.80

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Solution

The fourth proportional to 2,668,906.20, 4,003,359.30 and 1,321,276.80 is: 1,981,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668,906.20 : 4,003,359.30 = 1,321,276.80 : x
  2. Step 2: Convert to fraction form
    2,668,906.20/4,003,359.30 = 1,321,276.80/x
  3. Step 3: Cross multiply
    2,668,906.20x = 4,003,359.30 × 1,321,276.80
  4. Step 4: Simplify right side
    2,668,906.20x = 5,289,545,765,154.24
  5. Step 5: Solve for x
    x = 5,289,545,765,154.24/2,668,906.20
  6. Step 6: Final answer
    x = 1,981,915.20

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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.