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Finding the Fourth Proportional to 663,015.70, 994,523.55 and 242,593.30

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Solution

The fourth proportional to 663,015.70, 994,523.55 and 242,593.30 is: 363,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,015.70 : 994,523.55 = 242,593.30 : x
  2. Step 2: Convert to fraction form
    663,015.70/994,523.55 = 242,593.30/x
  3. Step 3: Cross multiply
    663,015.70x = 994,523.55 × 242,593.30
  4. Step 4: Simplify right side
    663,015.70x = 241,264,749,922.22
  5. Step 5: Solve for x
    x = 241,264,749,922.22/663,015.70
  6. Step 6: Final answer
    x = 363,889.95

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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.