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Finding the Fourth Proportional to 455,118, 682,677 and 122,694

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Solution

The fourth proportional to 455,118, 682,677 and 122,694 is: 184,041

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,118 : 682,677 = 122,694 : x
  2. Step 2: Convert to fraction form
    455,118/682,677 = 122,694/x
  3. Step 3: Cross multiply
    455,118x = 682,677 × 122,694
  4. Step 4: Simplify right side
    455,118x = 83,760,371,838
  5. Step 5: Solve for x
    x = 83,760,371,838/455,118
  6. Step 6: Final answer
    x = 184,041

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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.