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Finding the Fourth Proportional to 3,985,550.69, 5,978,286.63 and 1,825,963.23

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Solution

The fourth proportional to 3,985,550.69, 5,978,286.63 and 1,825,963.23 is: 2,738,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,550.69 : 5,978,286.63 = 1,825,963.23 : x
  2. Step 2: Convert to fraction form
    3,985,550.69/5,978,286.63 = 1,825,963.23/x
  3. Step 3: Cross multiply
    3,985,550.69x = 5,978,286.63 × 1,825,963.23
  4. Step 4: Simplify right side
    3,985,550.69x = 10,916,131,564,780.62
  5. Step 5: Solve for x
    x = 10,916,131,564,780.62/3,985,550.69
  6. Step 6: Final answer
    x = 2,738,926.80

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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.