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Finding the Fourth Proportional to 649,745.28, 896,660.28 and 363,234.78

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Solution

The fourth proportional to 649,745.28, 896,660.28 and 363,234.78 is: 501,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,745.28 : 896,660.28 = 363,234.78 : x
  2. Step 2: Convert to fraction form
    649,745.28/896,660.28 = 363,234.78/x
  3. Step 3: Cross multiply
    649,745.28x = 896,660.28 × 363,234.78
  4. Step 4: Simplify right side
    649,745.28x = 325,698,199,540.54
  5. Step 5: Solve for x
    x = 325,698,199,540.54/649,745.28
  6. Step 6: Final answer
    x = 501,270.59

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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.