Home / 805,150.20-1,207,725.30-331,591.80

Finding the Fourth Proportional to 805,150.20, 1,207,725.30 and 331,591.80

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Solution

The fourth proportional to 805,150.20, 1,207,725.30 and 331,591.80 is: 497,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,150.20 : 1,207,725.30 = 331,591.80 : x
  2. Step 2: Convert to fraction form
    805,150.20/1,207,725.30 = 331,591.80/x
  3. Step 3: Cross multiply
    805,150.20x = 1,207,725.30 × 331,591.80
  4. Step 4: Simplify right side
    805,150.20x = 400,471,806,132.54
  5. Step 5: Solve for x
    x = 400,471,806,132.54/805,150.20
  6. Step 6: Final answer
    x = 497,387.70

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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.