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Finding the Fourth Proportional to 664,329.80, 996,494.70 and 451,753.40

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Solution

The fourth proportional to 664,329.80, 996,494.70 and 451,753.40 is: 677,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,329.80 : 996,494.70 = 451,753.40 : x
  2. Step 2: Convert to fraction form
    664,329.80/996,494.70 = 451,753.40/x
  3. Step 3: Cross multiply
    664,329.80x = 996,494.70 × 451,753.40
  4. Step 4: Simplify right side
    664,329.80x = 450,169,868,806.98
  5. Step 5: Solve for x
    x = 450,169,868,806.98/664,329.80
  6. Step 6: Final answer
    x = 677,630.10

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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.