Home / 814,976.20-1,222,464.30-515,794.60

Finding the Fourth Proportional to 814,976.20, 1,222,464.30 and 515,794.60

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Solution

The fourth proportional to 814,976.20, 1,222,464.30 and 515,794.60 is: 773,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,976.20 : 1,222,464.30 = 515,794.60 : x
  2. Step 2: Convert to fraction form
    814,976.20/1,222,464.30 = 515,794.60/x
  3. Step 3: Cross multiply
    814,976.20x = 1,222,464.30 × 515,794.60
  4. Step 4: Simplify right side
    814,976.20x = 630,540,484,632.78
  5. Step 5: Solve for x
    x = 630,540,484,632.78/814,976.20
  6. Step 6: Final answer
    x = 773,691.90

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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.