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Finding the Fourth Proportional to 494,563.14, 682,489.08 and 279,695.16

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Solution

The fourth proportional to 494,563.14, 682,489.08 and 279,695.16 is: 385,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,563.14 : 682,489.08 = 279,695.16 : x
  2. Step 2: Convert to fraction form
    494,563.14/682,489.08 = 279,695.16/x
  3. Step 3: Cross multiply
    494,563.14x = 682,489.08 × 279,695.16
  4. Step 4: Simplify right side
    494,563.14x = 190,888,892,428.85
  5. Step 5: Solve for x
    x = 190,888,892,428.85/494,563.14
  6. Step 6: Final answer
    x = 385,974.77

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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.