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Finding the Fourth Proportional to 863,676.92, 1,295,468.69 and 264,639.85

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Solution

The fourth proportional to 863,676.92, 1,295,468.69 and 264,639.85 is: 396,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,676.92 : 1,295,468.69 = 264,639.85 : x
  2. Step 2: Convert to fraction form
    863,676.92/1,295,468.69 = 264,639.85/x
  3. Step 3: Cross multiply
    863,676.92x = 1,295,468.69 × 264,639.85
  4. Step 4: Simplify right side
    863,676.92x = 342,832,634,906.27
  5. Step 5: Solve for x
    x = 342,832,634,906.27/863,676.92
  6. Step 6: Final answer
    x = 396,945.47

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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.