Home / 805,224.20-1,207,836.30-331,665.80

Finding the Fourth Proportional to 805,224.20, 1,207,836.30 and 331,665.80

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Solution

The fourth proportional to 805,224.20, 1,207,836.30 and 331,665.80 is: 497,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,224.20 : 1,207,836.30 = 331,665.80 : x
  2. Step 2: Convert to fraction form
    805,224.20/1,207,836.30 = 331,665.80/x
  3. Step 3: Cross multiply
    805,224.20x = 1,207,836.30 × 331,665.80
  4. Step 4: Simplify right side
    805,224.20x = 400,597,992,708.54
  5. Step 5: Solve for x
    x = 400,597,992,708.54/805,224.20
  6. Step 6: Final answer
    x = 497,498.70

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Double scale
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Similar ratio
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1.5x scale

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.