Home / 979,633.80-1,469,105.10-348,568.20

Finding the Fourth Proportional to 979,633.80, 1,469,105.10 and 348,568.20

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Solution

The fourth proportional to 979,633.80, 1,469,105.10 and 348,568.20 is: 522,729.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,633.80 : 1,469,105.10 = 348,568.20 : x
  2. Step 2: Convert to fraction form
    979,633.80/1,469,105.10 = 348,568.20/x
  3. Step 3: Cross multiply
    979,633.80x = 1,469,105.10 × 348,568.20
  4. Step 4: Simplify right side
    979,633.80x = 512,083,320,317.82
  5. Step 5: Solve for x
    x = 512,083,320,317.82/979,633.80
  6. Step 6: Final answer
    x = 522,729.33

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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.