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Finding the Fourth Proportional to 664,594.80, 996,892.20 and 327,796.80

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Solution

The fourth proportional to 664,594.80, 996,892.20 and 327,796.80 is: 491,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,594.80 : 996,892.20 = 327,796.80 : x
  2. Step 2: Convert to fraction form
    664,594.80/996,892.20 = 327,796.80/x
  3. Step 3: Cross multiply
    664,594.80x = 996,892.20 × 327,796.80
  4. Step 4: Simplify right side
    664,594.80x = 326,778,073,104.96
  5. Step 5: Solve for x
    x = 326,778,073,104.96/664,594.80
  6. Step 6: Final answer
    x = 491,695.20

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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.