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Finding the Fourth Proportional to 324,879.92, 487,072.92 and 224,774

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Solution

The fourth proportional to 324,879.92, 487,072.92 and 224,774 is: 336,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,879.92 : 487,072.92 = 224,774 : x
  2. Step 2: Convert to fraction form
    324,879.92/487,072.92 = 224,774/x
  3. Step 3: Cross multiply
    324,879.92x = 487,072.92 × 224,774
  4. Step 4: Simplify right side
    324,879.92x = 109,481,328,520.08
  5. Step 5: Solve for x
    x = 109,481,328,520.08/324,879.92
  6. Step 6: Final answer
    x = 336,990.14

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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.