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Finding the Fourth Proportional to 483,948, 667,770.48 and 279,996.48

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Solution

The fourth proportional to 483,948, 667,770.48 and 279,996.48 is: 386,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,948 : 667,770.48 = 279,996.48 : x
  2. Step 2: Convert to fraction form
    483,948/667,770.48 = 279,996.48/x
  3. Step 3: Cross multiply
    483,948x = 667,770.48 × 279,996.48
  4. Step 4: Simplify right side
    483,948x = 186,973,383,847.91
  5. Step 5: Solve for x
    x = 186,973,383,847.91/483,948
  6. Step 6: Final answer
    x = 386,350.15

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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.