Home / 3,131,391.20-4,321,246.68-1,842,314.60

Finding the Fourth Proportional to 3,131,391.20, 4,321,246.68 and 1,842,314.60

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Solution

The fourth proportional to 3,131,391.20, 4,321,246.68 and 1,842,314.60 is: 2,542,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,391.20 : 4,321,246.68 = 1,842,314.60 : x
  2. Step 2: Convert to fraction form
    3,131,391.20/4,321,246.68 = 1,842,314.60/x
  3. Step 3: Cross multiply
    3,131,391.20x = 4,321,246.68 × 1,842,314.60
  4. Step 4: Simplify right side
    3,131,391.20x = 7,961,095,848,765.53
  5. Step 5: Solve for x
    x = 7,961,095,848,765.53/3,131,391.20
  6. Step 6: Final answer
    x = 2,542,351.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.