Home / 3,880,142.40-5,820,919.78-1,321,226.58

Finding the Fourth Proportional to 3,880,142.40, 5,820,919.78 and 1,321,226.58

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Solution

The fourth proportional to 3,880,142.40, 5,820,919.78 and 1,321,226.58 is: 1,982,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,142.40 : 5,820,919.78 = 1,321,226.58 : x
  2. Step 2: Convert to fraction form
    3,880,142.40/5,820,919.78 = 1,321,226.58/x
  3. Step 3: Cross multiply
    3,880,142.40x = 5,820,919.78 × 1,321,226.58
  4. Step 4: Simplify right side
    3,880,142.40x = 7,690,753,933,383.75
  5. Step 5: Solve for x
    x = 7,690,753,933,383.75/3,880,142.40
  6. Step 6: Final answer
    x = 1,982,080.33

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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.