Home / 814,863.20-1,222,294.80-768,207.20

Finding the Fourth Proportional to 814,863.20, 1,222,294.80 and 768,207.20

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Solution

The fourth proportional to 814,863.20, 1,222,294.80 and 768,207.20 is: 1,152,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,863.20 : 1,222,294.80 = 768,207.20 : x
  2. Step 2: Convert to fraction form
    814,863.20/1,222,294.80 = 768,207.20/x
  3. Step 3: Cross multiply
    814,863.20x = 1,222,294.80 × 768,207.20
  4. Step 4: Simplify right side
    814,863.20x = 938,975,665,882.56
  5. Step 5: Solve for x
    x = 938,975,665,882.56/814,863.20
  6. Step 6: Final answer
    x = 1,152,310.80

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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.