Home / 814,234.20-1,221,424.20-340,821.60

Finding the Fourth Proportional to 814,234.20, 1,221,424.20 and 340,821.60

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Solution

The fourth proportional to 814,234.20, 1,221,424.20 and 340,821.60 is: 511,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,234.20 : 1,221,424.20 = 340,821.60 : x
  2. Step 2: Convert to fraction form
    814,234.20/1,221,424.20 = 340,821.60/x
  3. Step 3: Cross multiply
    814,234.20x = 1,221,424.20 × 340,821.60
  4. Step 4: Simplify right side
    814,234.20x = 416,287,750,122.72
  5. Step 5: Solve for x
    x = 416,287,750,122.72/814,234.20
  6. Step 6: Final answer
    x = 511,262.91

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1.5x scale

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.