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Finding the Fourth Proportional to 664,530.60, 996,795.90 and 498,642.60

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Solution

The fourth proportional to 664,530.60, 996,795.90 and 498,642.60 is: 747,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,530.60 : 996,795.90 = 498,642.60 : x
  2. Step 2: Convert to fraction form
    664,530.60/996,795.90 = 498,642.60/x
  3. Step 3: Cross multiply
    664,530.60x = 996,795.90 × 498,642.60
  4. Step 4: Simplify right side
    664,530.60x = 497,044,899,245.34
  5. Step 5: Solve for x
    x = 497,044,899,245.34/664,530.60
  6. Step 6: Final answer
    x = 747,963.90

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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.