Home / 3,378,986.62-5,068,481.98-820,205.28

Finding the Fourth Proportional to 3,378,986.62, 5,068,481.98 and 820,205.28

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Solution

The fourth proportional to 3,378,986.62, 5,068,481.98 and 820,205.28 is: 1,230,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378,986.62 : 5,068,481.98 = 820,205.28 : x
  2. Step 2: Convert to fraction form
    3,378,986.62/5,068,481.98 = 820,205.28/x
  3. Step 3: Cross multiply
    3,378,986.62x = 5,068,481.98 × 820,205.28
  4. Step 4: Simplify right side
    3,378,986.62x = 4,157,195,681,580.86
  5. Step 5: Solve for x
    x = 4,157,195,681,580.86/3,378,986.62
  6. Step 6: Final answer
    x = 1,230,308.42

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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.