Home / 2,628,219.20-3,942,815.40-831,554.96

Finding the Fourth Proportional to 2,628,219.20, 3,942,815.40 and 831,554.96

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Solution

The fourth proportional to 2,628,219.20, 3,942,815.40 and 831,554.96 is: 1,247,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,219.20 : 3,942,815.40 = 831,554.96 : x
  2. Step 2: Convert to fraction form
    2,628,219.20/3,942,815.40 = 831,554.96/x
  3. Step 3: Cross multiply
    2,628,219.20x = 3,942,815.40 × 831,554.96
  4. Step 4: Simplify right side
    2,628,219.20x = 3,278,667,682,520.31
  5. Step 5: Solve for x
    x = 3,278,667,682,520.31/2,628,219.20
  6. Step 6: Final answer
    x = 1,247,486.39

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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.