Home / 2,072,709.78-3,109,064.80-809,651.70

Finding the Fourth Proportional to 2,072,709.78, 3,109,064.80 and 809,651.70

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Solution

The fourth proportional to 2,072,709.78, 3,109,064.80 and 809,651.70 is: 1,214,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,709.78 : 3,109,064.80 = 809,651.70 : x
  2. Step 2: Convert to fraction form
    2,072,709.78/3,109,064.80 = 809,651.70/x
  3. Step 3: Cross multiply
    2,072,709.78x = 3,109,064.80 × 809,651.70
  4. Step 4: Simplify right side
    2,072,709.78x = 2,517,259,600,730.16
  5. Step 5: Solve for x
    x = 2,517,259,600,730.16/2,072,709.78
  6. Step 6: Final answer
    x = 1,214,477.60

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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.