Home / 812,260.20-1,218,373.94-279,769.44

Finding the Fourth Proportional to 812,260.20, 1,218,373.94 and 279,769.44

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Solution

The fourth proportional to 812,260.20, 1,218,373.94 and 279,769.44 is: 419,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,260.20 : 1,218,373.94 = 279,769.44 : x
  2. Step 2: Convert to fraction form
    812,260.20/1,218,373.94 = 279,769.44/x
  3. Step 3: Cross multiply
    812,260.20x = 1,218,373.94 × 279,769.44
  4. Step 4: Simplify right side
    812,260.20x = 340,863,793,505.55
  5. Step 5: Solve for x
    x = 340,863,793,505.55/812,260.20
  6. Step 6: Final answer
    x = 419,648.52

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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.