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Finding the Fourth Proportional to 663,087.20, 994,630.80 and 242,664.80

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Solution

The fourth proportional to 663,087.20, 994,630.80 and 242,664.80 is: 363,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,087.20 : 994,630.80 = 242,664.80 : x
  2. Step 2: Convert to fraction form
    663,087.20/994,630.80 = 242,664.80/x
  3. Step 3: Cross multiply
    663,087.20x = 994,630.80 × 242,664.80
  4. Step 4: Simplify right side
    663,087.20x = 241,361,884,155.84
  5. Step 5: Solve for x
    x = 241,361,884,155.84/663,087.20
  6. Step 6: Final answer
    x = 363,997.20

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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.