Home / 2,072,718.78-3,109,078.30-809,660.70

Finding the Fourth Proportional to 2,072,718.78, 3,109,078.30 and 809,660.70

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Solution

The fourth proportional to 2,072,718.78, 3,109,078.30 and 809,660.70 is: 1,214,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,718.78 : 3,109,078.30 = 809,660.70 : x
  2. Step 2: Convert to fraction form
    2,072,718.78/3,109,078.30 = 809,660.70/x
  3. Step 3: Cross multiply
    2,072,718.78x = 3,109,078.30 × 809,660.70
  4. Step 4: Simplify right side
    2,072,718.78x = 2,517,298,512,732.81
  5. Step 5: Solve for x
    x = 2,517,298,512,732.81/2,072,718.78
  6. Step 6: Final answer
    x = 1,214,491.10

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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.