Home / 2,728,157.28-4,092,930.88-809,138.48

Finding the Fourth Proportional to 2,728,157.28, 4,092,930.88 and 809,138.48

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Solution

The fourth proportional to 2,728,157.28, 4,092,930.88 and 809,138.48 is: 1,213,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728,157.28 : 4,092,930.88 = 809,138.48 : x
  2. Step 2: Convert to fraction form
    2,728,157.28/4,092,930.88 = 809,138.48/x
  3. Step 3: Cross multiply
    2,728,157.28x = 4,092,930.88 × 809,138.48
  4. Step 4: Simplify right side
    2,728,157.28x = 3,311,747,870,988.26
  5. Step 5: Solve for x
    x = 3,311,747,870,988.26/2,728,157.28
  6. Step 6: Final answer
    x = 1,213,913.84

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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.