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Finding the Fourth Proportional to 664,294.80, 996,442.20 and 264,729.90

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Solution

The fourth proportional to 664,294.80, 996,442.20 and 264,729.90 is: 397,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,294.80 : 996,442.20 = 264,729.90 : x
  2. Step 2: Convert to fraction form
    664,294.80/996,442.20 = 264,729.90/x
  3. Step 3: Cross multiply
    664,294.80x = 996,442.20 × 264,729.90
  4. Step 4: Simplify right side
    664,294.80x = 263,788,043,961.78
  5. Step 5: Solve for x
    x = 263,788,043,961.78/664,294.80
  6. Step 6: Final answer
    x = 397,094.85

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Similar ratio
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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.