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Finding the Fourth Proportional to 494,375.69, 682,256.79 and 279,502.94

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Solution

The fourth proportional to 494,375.69, 682,256.79 and 279,502.94 is: 385,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,375.69 : 682,256.79 = 279,502.94 : x
  2. Step 2: Convert to fraction form
    494,375.69/682,256.79 = 279,502.94/x
  3. Step 3: Cross multiply
    494,375.69x = 682,256.79 × 279,502.94
  4. Step 4: Simplify right side
    494,375.69x = 190,692,778,639.96
  5. Step 5: Solve for x
    x = 190,692,778,639.96/494,375.69
  6. Step 6: Final answer
    x = 385,724.42

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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.