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Finding the Fourth Proportional to 494,989.97, 683,086.50 and 268,635.47

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Solution

The fourth proportional to 494,989.97, 683,086.50 and 268,635.47 is: 370,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,989.97 : 683,086.50 = 268,635.47 : x
  2. Step 2: Convert to fraction form
    494,989.97/683,086.50 = 268,635.47/x
  3. Step 3: Cross multiply
    494,989.97x = 683,086.50 × 268,635.47
  4. Step 4: Simplify right side
    494,989.97x = 183,501,259,562.72
  5. Step 5: Solve for x
    x = 183,501,259,562.72/494,989.97
  6. Step 6: Final answer
    x = 370,717.13

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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.