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Finding the Fourth Proportional to 489,249.72, 675,171.36 and 295,630.56

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Solution

The fourth proportional to 489,249.72, 675,171.36 and 295,630.56 is: 407,974.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,249.72 : 675,171.36 = 295,630.56 : x
  2. Step 2: Convert to fraction form
    489,249.72/675,171.36 = 295,630.56/x
  3. Step 3: Cross multiply
    489,249.72x = 675,171.36 × 295,630.56
  4. Step 4: Simplify right side
    489,249.72x = 199,601,287,252.76
  5. Step 5: Solve for x
    x = 199,601,287,252.76/489,249.72
  6. Step 6: Final answer
    x = 407,974.25

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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.