Home / 838,419.30-1,257,515.55-333,351.90

Finding the Fourth Proportional to 838,419.30, 1,257,515.55 and 333,351.90

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Solution

The fourth proportional to 838,419.30, 1,257,515.55 and 333,351.90 is: 499,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,419.30 : 1,257,515.55 = 333,351.90 : x
  2. Step 2: Convert to fraction form
    838,419.30/1,257,515.55 = 333,351.90/x
  3. Step 3: Cross multiply
    838,419.30x = 1,257,515.55 × 333,351.90
  4. Step 4: Simplify right side
    838,419.30x = 419,195,197,872.05
  5. Step 5: Solve for x
    x = 419,195,197,872.05/838,419.30
  6. Step 6: Final answer
    x = 499,982.76

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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.