Home / 809,072.42-1,206,977.28-787,081.28

Finding the Fourth Proportional to 809,072.42, 1,206,977.28 and 787,081.28

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Solution

The fourth proportional to 809,072.42, 1,206,977.28 and 787,081.28 is: 1,174,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,072.42 : 1,206,977.28 = 787,081.28 : x
  2. Step 2: Convert to fraction form
    809,072.42/1,206,977.28 = 787,081.28/x
  3. Step 3: Cross multiply
    809,072.42x = 1,206,977.28 × 787,081.28
  4. Step 4: Simplify right side
    809,072.42x = 949,989,213,486.88
  5. Step 5: Solve for x
    x = 949,989,213,486.88/809,072.42
  6. Step 6: Final answer
    x = 1,174,170.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.