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Finding the Fourth Proportional to 494,910.88, 682,978.84 and 268,556.38

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Solution

The fourth proportional to 494,910.88, 682,978.84 and 268,556.38 is: 370,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,910.88 : 682,978.84 = 268,556.38 : x
  2. Step 2: Convert to fraction form
    494,910.88/682,978.84 = 268,556.38/x
  3. Step 3: Cross multiply
    494,910.88x = 682,978.84 × 268,556.38
  4. Step 4: Simplify right side
    494,910.88x = 183,418,324,887.00
  5. Step 5: Solve for x
    x = 183,418,324,887.00/494,910.88
  6. Step 6: Final answer
    x = 370,608.80

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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.