Home / 1,218,429.33-1,681,426.31-667,135.04

Finding the Fourth Proportional to 1,218,429.33, 1,681,426.31 and 667,135.04

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Solution

The fourth proportional to 1,218,429.33, 1,681,426.31 and 667,135.04 is: 920,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,429.33 : 1,681,426.31 = 667,135.04 : x
  2. Step 2: Convert to fraction form
    1,218,429.33/1,681,426.31 = 667,135.04/x
  3. Step 3: Cross multiply
    1,218,429.33x = 1,681,426.31 × 667,135.04
  4. Step 4: Simplify right side
    1,218,429.33x = 1,121,738,396,836.10
  5. Step 5: Solve for x
    x = 1,121,738,396,836.10/1,218,429.33
  6. Step 6: Final answer
    x = 920,642.97

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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.