Home / 2,072,694.32-3,109,041.52-809,636.21

Finding the Fourth Proportional to 2,072,694.32, 3,109,041.52 and 809,636.21

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Solution

The fourth proportional to 2,072,694.32, 3,109,041.52 and 809,636.21 is: 1,214,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,694.32 : 3,109,041.52 = 809,636.21 : x
  2. Step 2: Convert to fraction form
    2,072,694.32/3,109,041.52 = 809,636.21/x
  3. Step 3: Cross multiply
    2,072,694.32x = 3,109,041.52 × 809,636.21
  4. Step 4: Simplify right side
    2,072,694.32x = 2,517,192,575,416.14
  5. Step 5: Solve for x
    x = 2,517,192,575,416.14/2,072,694.32
  6. Step 6: Final answer
    x = 1,214,454.33

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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.