Home / 1,278,876.33-1,764,074.70-762,286.01

Finding the Fourth Proportional to 1,278,876.33, 1,764,074.70 and 762,286.01

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Solution

The fourth proportional to 1,278,876.33, 1,764,074.70 and 762,286.01 is: 1,051,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,876.33 : 1,764,074.70 = 762,286.01 : x
  2. Step 2: Convert to fraction form
    1,278,876.33/1,764,074.70 = 762,286.01/x
  3. Step 3: Cross multiply
    1,278,876.33x = 1,764,074.70 × 762,286.01
  4. Step 4: Simplify right side
    1,278,876.33x = 1,344,729,455,584.57
  5. Step 5: Solve for x
    x = 1,344,729,455,584.57/1,278,876.33
  6. Step 6: Final answer
    x = 1,051,492.96

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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.