Home / 681,385.20-1,022,466.60-260,962.80

Finding the Fourth Proportional to 681,385.20, 1,022,466.60 and 260,962.80

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Solution

The fourth proportional to 681,385.20, 1,022,466.60 and 260,962.80 is: 391,593.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,385.20 : 1,022,466.60 = 260,962.80 : x
  2. Step 2: Convert to fraction form
    681,385.20/1,022,466.60 = 260,962.80/x
  3. Step 3: Cross multiply
    681,385.20x = 1,022,466.60 × 260,962.80
  4. Step 4: Simplify right side
    681,385.20x = 266,825,746,842.48
  5. Step 5: Solve for x
    x = 266,825,746,842.48/681,385.20
  6. Step 6: Final answer
    x = 391,593.11

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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.