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Finding the Fourth Proportional to 658,481.96, 987,044.96 and 258,960.80

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Solution

The fourth proportional to 658,481.96, 987,044.96 and 258,960.80 is: 388,174.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,481.96 : 987,044.96 = 258,960.80 : x
  2. Step 2: Convert to fraction form
    658,481.96/987,044.96 = 258,960.80/x
  3. Step 3: Cross multiply
    658,481.96x = 987,044.96 × 258,960.80
  4. Step 4: Simplify right side
    658,481.96x = 255,605,952,477.57
  5. Step 5: Solve for x
    x = 255,605,952,477.57/658,481.96
  6. Step 6: Final answer
    x = 388,174.57

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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.