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Finding the Fourth Proportional to 422,244.94, 633,408.90 and 122,728

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Solution

The fourth proportional to 422,244.94, 633,408.90 and 122,728 is: 184,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,244.94 : 633,408.90 = 122,728 : x
  2. Step 2: Convert to fraction form
    422,244.94/633,408.90 = 122,728/x
  3. Step 3: Cross multiply
    422,244.94x = 633,408.90 × 122,728
  4. Step 4: Simplify right side
    422,244.94x = 77,737,007,479.20
  5. Step 5: Solve for x
    x = 77,737,007,479.20/422,244.94
  6. Step 6: Final answer
    x = 184,104.06

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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.