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Finding the Fourth Proportional to 664,462.10, 996,838.95 and 327,664.10

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Solution

The fourth proportional to 664,462.10, 996,838.95 and 327,664.10 is: 491,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,462.10 : 996,838.95 = 327,664.10 : x
  2. Step 2: Convert to fraction form
    664,462.10/996,838.95 = 327,664.10/x
  3. Step 3: Cross multiply
    664,462.10x = 996,838.95 × 327,664.10
  4. Step 4: Simplify right side
    664,462.10x = 326,628,337,396.70
  5. Step 5: Solve for x
    x = 326,628,337,396.70/664,462.10
  6. Step 6: Final answer
    x = 491,568.05

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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.