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Finding the Fourth Proportional to 494,635.25, 682,596.69 and 279,770.69

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Solution

The fourth proportional to 494,635.25, 682,596.69 and 279,770.69 is: 386,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,635.25 : 682,596.69 = 279,770.69 : x
  2. Step 2: Convert to fraction form
    494,635.25/682,596.69 = 279,770.69/x
  3. Step 3: Cross multiply
    494,635.25x = 682,596.69 × 279,770.69
  4. Step 4: Simplify right side
    494,635.25x = 190,970,546,953.02
  5. Step 5: Solve for x
    x = 190,970,546,953.02/494,635.25
  6. Step 6: Final answer
    x = 386,083.58

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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.