Home / 1,278,149.46-1,916,745.75-548,580.57

Finding the Fourth Proportional to 1,278,149.46, 1,916,745.75 and 548,580.57

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Solution

The fourth proportional to 1,278,149.46, 1,916,745.75 and 548,580.57 is: 822,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,149.46 : 1,916,745.75 = 548,580.57 : x
  2. Step 2: Convert to fraction form
    1,278,149.46/1,916,745.75 = 548,580.57/x
  3. Step 3: Cross multiply
    1,278,149.46x = 1,916,745.75 × 548,580.57
  4. Step 4: Simplify right side
    1,278,149.46x = 1,051,489,476,080.08
  5. Step 5: Solve for x
    x = 1,051,489,476,080.08/1,278,149.46
  6. Step 6: Final answer
    x = 822,665.51

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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.