Home / 1,121,961.68-1,682,942.52-280,513.43

Finding the Fourth Proportional to 1,121,961.68, 1,682,942.52 and 280,513.43

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Solution

The fourth proportional to 1,121,961.68, 1,682,942.52 and 280,513.43 is: 420,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,961.68 : 1,682,942.52 = 280,513.43 : x
  2. Step 2: Convert to fraction form
    1,121,961.68/1,682,942.52 = 280,513.43/x
  3. Step 3: Cross multiply
    1,121,961.68x = 1,682,942.52 × 280,513.43
  4. Step 4: Simplify right side
    1,121,961.68x = 472,087,976,148.40
  5. Step 5: Solve for x
    x = 472,087,976,148.40/1,121,961.68
  6. Step 6: Final answer
    x = 420,770.14

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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.