Home / 814,229.70-1,221,344.55-802,419.90

Finding the Fourth Proportional to 814,229.70, 1,221,344.55 and 802,419.90

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Solution

The fourth proportional to 814,229.70, 1,221,344.55 and 802,419.90 is: 1,203,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,229.70 : 1,221,344.55 = 802,419.90 : x
  2. Step 2: Convert to fraction form
    814,229.70/1,221,344.55 = 802,419.90/x
  3. Step 3: Cross multiply
    814,229.70x = 1,221,344.55 × 802,419.90
  4. Step 4: Simplify right side
    814,229.70x = 980,031,171,676.55
  5. Step 5: Solve for x
    x = 980,031,171,676.55/814,229.70
  6. Step 6: Final answer
    x = 1,203,629.85

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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.