Home / 741,219.18-1,022,992.20-469,312.38

Finding the Fourth Proportional to 741,219.18, 1,022,992.20 and 469,312.38

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Solution

The fourth proportional to 741,219.18, 1,022,992.20 and 469,312.38 is: 647,720.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,219.18 : 1,022,992.20 = 469,312.38 : x
  2. Step 2: Convert to fraction form
    741,219.18/1,022,992.20 = 469,312.38/x
  3. Step 3: Cross multiply
    741,219.18x = 1,022,992.20 × 469,312.38
  4. Step 4: Simplify right side
    741,219.18x = 480,102,904,103.44
  5. Step 5: Solve for x
    x = 480,102,904,103.44/741,219.18
  6. Step 6: Final answer
    x = 647,720.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.