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Finding the Fourth Proportional to 664,279.65, 996,419.48 and 460,560.60

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Solution

The fourth proportional to 664,279.65, 996,419.48 and 460,560.60 is: 690,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,279.65 : 996,419.48 = 460,560.60 : x
  2. Step 2: Convert to fraction form
    664,279.65/996,419.48 = 460,560.60/x
  3. Step 3: Cross multiply
    664,279.65x = 996,419.48 × 460,560.60
  4. Step 4: Simplify right side
    664,279.65x = 458,911,551,257.69
  5. Step 5: Solve for x
    x = 458,911,551,257.69/664,279.65
  6. Step 6: Final answer
    x = 690,840.90

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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.