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Finding the Fourth Proportional to 663,014.20, 994,229.70 and 263,522.20

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Solution

The fourth proportional to 663,014.20, 994,229.70 and 263,522.20 is: 395,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,014.20 : 994,229.70 = 263,522.20 : x
  2. Step 2: Convert to fraction form
    663,014.20/994,229.70 = 263,522.20/x
  3. Step 3: Cross multiply
    663,014.20x = 994,229.70 × 263,522.20
  4. Step 4: Simplify right side
    663,014.20x = 262,001,597,849.34
  5. Step 5: Solve for x
    x = 262,001,597,849.34/663,014.20
  6. Step 6: Final answer
    x = 395,167.40

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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.