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Finding the Fourth Proportional to 551,091.20, 825,849.60 and 313,932.80

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Solution

The fourth proportional to 551,091.20, 825,849.60 and 313,932.80 is: 470,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,091.20 : 825,849.60 = 313,932.80 : x
  2. Step 2: Convert to fraction form
    551,091.20/825,849.60 = 313,932.80/x
  3. Step 3: Cross multiply
    551,091.20x = 825,849.60 × 313,932.80
  4. Step 4: Simplify right side
    551,091.20x = 259,261,277,306.88
  5. Step 5: Solve for x
    x = 259,261,277,306.88/551,091.20
  6. Step 6: Final answer
    x = 470,450.77

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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.