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Finding the Fourth Proportional to 494,712.97, 682,704.12 and 279,848.46

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Solution

The fourth proportional to 494,712.97, 682,704.12 and 279,848.46 is: 386,191.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,712.97 : 682,704.12 = 279,848.46 : x
  2. Step 2: Convert to fraction form
    494,712.97/682,704.12 = 279,848.46/x
  3. Step 3: Cross multiply
    494,712.97x = 682,704.12 × 279,848.46
  4. Step 4: Simplify right side
    494,712.97x = 191,053,696,617.66
  5. Step 5: Solve for x
    x = 191,053,696,617.66/494,712.97
  6. Step 6: Final answer
    x = 386,191.00

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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.