Home / 455,067.40-682,601.10-329,096.20

Finding the Fourth Proportional to 455,067.40, 682,601.10 and 329,096.20

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Solution

The fourth proportional to 455,067.40, 682,601.10 and 329,096.20 is: 493,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,067.40 : 682,601.10 = 329,096.20 : x
  2. Step 2: Convert to fraction form
    455,067.40/682,601.10 = 329,096.20/x
  3. Step 3: Cross multiply
    455,067.40x = 682,601.10 × 329,096.20
  4. Step 4: Simplify right side
    455,067.40x = 224,641,428,125.82
  5. Step 5: Solve for x
    x = 224,641,428,125.82/455,067.40
  6. Step 6: Final answer
    x = 493,644.30

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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.