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Finding the Fourth Proportional to 551,704.20, 827,556.30 and 491,569.80

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Solution

The fourth proportional to 551,704.20, 827,556.30 and 491,569.80 is: 737,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,704.20 : 827,556.30 = 491,569.80 : x
  2. Step 2: Convert to fraction form
    551,704.20/827,556.30 = 491,569.80/x
  3. Step 3: Cross multiply
    551,704.20x = 827,556.30 × 491,569.80
  4. Step 4: Simplify right side
    551,704.20x = 406,801,684,879.74
  5. Step 5: Solve for x
    x = 406,801,684,879.74/551,704.20
  6. Step 6: Final answer
    x = 737,354.70

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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.