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Finding the Fourth Proportional to 574,285.89, 861,620.66 and 254,394.30

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Solution

The fourth proportional to 574,285.89, 861,620.66 and 254,394.30 is: 381,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,285.89 : 861,620.66 = 254,394.30 : x
  2. Step 2: Convert to fraction form
    574,285.89/861,620.66 = 254,394.30/x
  3. Step 3: Cross multiply
    574,285.89x = 861,620.66 × 254,394.30
  4. Step 4: Simplify right side
    574,285.89x = 219,191,383,394.27
  5. Step 5: Solve for x
    x = 219,191,383,394.27/574,285.89
  6. Step 6: Final answer
    x = 381,676.42

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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.