Home / 2,728,149.28-4,092,918.88-809,130.48

Finding the Fourth Proportional to 2,728,149.28, 4,092,918.88 and 809,130.48

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Solution

The fourth proportional to 2,728,149.28, 4,092,918.88 and 809,130.48 is: 1,213,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728,149.28 : 4,092,918.88 = 809,130.48 : x
  2. Step 2: Convert to fraction form
    2,728,149.28/4,092,918.88 = 809,130.48/x
  3. Step 3: Cross multiply
    2,728,149.28x = 4,092,918.88 × 809,130.48
  4. Step 4: Simplify right side
    2,728,149.28x = 3,311,705,417,975.46
  5. Step 5: Solve for x
    x = 3,311,705,417,975.46/2,728,149.28
  6. Step 6: Final answer
    x = 1,213,901.84

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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.