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Finding the Fourth Proportional to 494,705.97, 682,694.46 and 279,841.46

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Solution

The fourth proportional to 494,705.97, 682,694.46 and 279,841.46 is: 386,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,705.97 : 682,694.46 = 279,841.46 : x
  2. Step 2: Convert to fraction form
    494,705.97/682,694.46 = 279,841.46/x
  3. Step 3: Cross multiply
    494,705.97x = 682,694.46 × 279,841.46
  4. Step 4: Simplify right side
    494,705.97x = 191,046,211,006.84
  5. Step 5: Solve for x
    x = 191,046,211,006.84/494,705.97
  6. Step 6: Final answer
    x = 386,181.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.