Home / 805,105.10-1,207,657.65-331,633.10

Finding the Fourth Proportional to 805,105.10, 1,207,657.65 and 331,633.10

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Solution

The fourth proportional to 805,105.10, 1,207,657.65 and 331,633.10 is: 497,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,105.10 : 1,207,657.65 = 331,633.10 : x
  2. Step 2: Convert to fraction form
    805,105.10/1,207,657.65 = 331,633.10/x
  3. Step 3: Cross multiply
    805,105.10x = 1,207,657.65 × 331,633.10
  4. Step 4: Simplify right side
    805,105.10x = 400,499,250,208.22
  5. Step 5: Solve for x
    x = 400,499,250,208.22/805,105.10
  6. Step 6: Final answer
    x = 497,449.65

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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.