Home / 1,172,821.28-1,618,667.43-743,141.66

Finding the Fourth Proportional to 1,172,821.28, 1,618,667.43 and 743,141.66

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Solution

The fourth proportional to 1,172,821.28, 1,618,667.43 and 743,141.66 is: 1,025,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,821.28 : 1,618,667.43 = 743,141.66 : x
  2. Step 2: Convert to fraction form
    1,172,821.28/1,618,667.43 = 743,141.66/x
  3. Step 3: Cross multiply
    1,172,821.28x = 1,618,667.43 × 743,141.66
  4. Step 4: Simplify right side
    1,172,821.28x = 1,202,899,200,918.13
  5. Step 5: Solve for x
    x = 1,202,899,200,918.13/1,172,821.28
  6. Step 6: Final answer
    x = 1,025,645.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.