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Finding the Fourth Proportional to 494,661, 682,632.24 and 279,796.44

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Solution

The fourth proportional to 494,661, 682,632.24 and 279,796.44 is: 386,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,661 : 682,632.24 = 279,796.44 : x
  2. Step 2: Convert to fraction form
    494,661/682,632.24 = 279,796.44/x
  3. Step 3: Cross multiply
    494,661x = 682,632.24 × 279,796.44
  4. Step 4: Simplify right side
    494,661x = 190,998,070,581.23
  5. Step 5: Solve for x
    x = 190,998,070,581.23/494,661
  6. Step 6: Final answer
    x = 386,119.12

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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.