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Finding the Fourth Proportional to 494,367.97, 682,246.17 and 279,495.22

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Solution

The fourth proportional to 494,367.97, 682,246.17 and 279,495.22 is: 385,713.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,367.97 : 682,246.17 = 279,495.22 : x
  2. Step 2: Convert to fraction form
    494,367.97/682,246.17 = 279,495.22/x
  3. Step 3: Cross multiply
    494,367.97x = 682,246.17 × 279,495.22
  4. Step 4: Simplify right side
    494,367.97x = 190,684,543,378.31
  5. Step 5: Solve for x
    x = 190,684,543,378.31/494,367.97
  6. Step 6: Final answer
    x = 385,713.79

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1.5x scale

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.