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Finding the Fourth Proportional to 664,627.30, 996,940.95 and 486,168.10

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Solution

The fourth proportional to 664,627.30, 996,940.95 and 486,168.10 is: 729,252.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,627.30 : 996,940.95 = 486,168.10 : x
  2. Step 2: Convert to fraction form
    664,627.30/996,940.95 = 486,168.10/x
  3. Step 3: Cross multiply
    664,627.30x = 996,940.95 × 486,168.10
  4. Step 4: Simplify right side
    664,627.30x = 484,680,887,473.70
  5. Step 5: Solve for x
    x = 484,680,887,473.70/664,627.30
  6. Step 6: Final answer
    x = 729,252.15

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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.