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Finding the Fourth Proportional to 451,999.38, 674,005.60 and 447,942.50

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Solution

The fourth proportional to 451,999.38, 674,005.60 and 447,942.50 is: 667,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,999.38 : 674,005.60 = 447,942.50 : x
  2. Step 2: Convert to fraction form
    451,999.38/674,005.60 = 447,942.50/x
  3. Step 3: Cross multiply
    451,999.38x = 674,005.60 × 447,942.50
  4. Step 4: Simplify right side
    451,999.38x = 301,915,753,478
  5. Step 5: Solve for x
    x = 301,915,753,478/451,999.38
  6. Step 6: Final answer
    x = 667,956.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.