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Finding the Fourth Proportional to 494,773.57, 682,766.58 and 279,917.29

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Solution

The fourth proportional to 494,773.57, 682,766.58 and 279,917.29 is: 386,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,773.57 : 682,766.58 = 279,917.29 : x
  2. Step 2: Convert to fraction form
    494,773.57/682,766.58 = 279,917.29/x
  3. Step 3: Cross multiply
    494,773.57x = 682,766.58 × 279,917.29
  4. Step 4: Simplify right side
    494,773.57x = 191,118,170,776.17
  5. Step 5: Solve for x
    x = 191,118,170,776.17/494,773.57
  6. Step 6: Final answer
    x = 386,274.01

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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.