Home / 847,761.26-1,271,590.39-300,680.78

Finding the Fourth Proportional to 847,761.26, 1,271,590.39 and 300,680.78

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Solution

The fourth proportional to 847,761.26, 1,271,590.39 and 300,680.78 is: 451,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,761.26 : 1,271,590.39 = 300,680.78 : x
  2. Step 2: Convert to fraction form
    847,761.26/1,271,590.39 = 300,680.78/x
  3. Step 3: Cross multiply
    847,761.26x = 1,271,590.39 × 300,680.78
  4. Step 4: Simplify right side
    847,761.26x = 382,342,790,305.70
  5. Step 5: Solve for x
    x = 382,342,790,305.70/847,761.26
  6. Step 6: Final answer
    x = 451,002.90

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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.