Home / 2,631,099.16-3,947,022.39-809,615.21

Finding the Fourth Proportional to 2,631,099.16, 3,947,022.39 and 809,615.21

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Solution

The fourth proportional to 2,631,099.16, 3,947,022.39 and 809,615.21 is: 1,214,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,099.16 : 3,947,022.39 = 809,615.21 : x
  2. Step 2: Convert to fraction form
    2,631,099.16/3,947,022.39 = 809,615.21/x
  3. Step 3: Cross multiply
    2,631,099.16x = 3,947,022.39 × 809,615.21
  4. Step 4: Simplify right side
    2,631,099.16x = 3,195,569,361,154.55
  5. Step 5: Solve for x
    x = 3,195,569,361,154.55/2,631,099.16
  6. Step 6: Final answer
    x = 1,214,537.79

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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.