Home / 851,540.80-1,277,311.20-810,068.80

Finding the Fourth Proportional to 851,540.80, 1,277,311.20 and 810,068.80

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Solution

The fourth proportional to 851,540.80, 1,277,311.20 and 810,068.80 is: 1,215,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,540.80 : 1,277,311.20 = 810,068.80 : x
  2. Step 2: Convert to fraction form
    851,540.80/1,277,311.20 = 810,068.80/x
  3. Step 3: Cross multiply
    851,540.80x = 1,277,311.20 × 810,068.80
  4. Step 4: Simplify right side
    851,540.80x = 1,034,709,951,010.56
  5. Step 5: Solve for x
    x = 1,034,709,951,010.56/851,540.80
  6. Step 6: Final answer
    x = 1,215,103.20

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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.