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Finding the Fourth Proportional to 544,380.21, 816,736.30 and 278,327.54

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Solution

The fourth proportional to 544,380.21, 816,736.30 and 278,327.54 is: 417,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,380.21 : 816,736.30 = 278,327.54 : x
  2. Step 2: Convert to fraction form
    544,380.21/816,736.30 = 278,327.54/x
  3. Step 3: Cross multiply
    544,380.21x = 816,736.30 × 278,327.54
  4. Step 4: Simplify right side
    544,380.21x = 227,320,206,553.72
  5. Step 5: Solve for x
    x = 227,320,206,553.72/544,380.21
  6. Step 6: Final answer
    x = 417,576.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.