Home / 1,286,880.82-1,776,049.05-743,149.06

Finding the Fourth Proportional to 1,286,880.82, 1,776,049.05 and 743,149.06

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Solution

The fourth proportional to 1,286,880.82, 1,776,049.05 and 743,149.06 is: 1,025,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,880.82 : 1,776,049.05 = 743,149.06 : x
  2. Step 2: Convert to fraction form
    1,286,880.82/1,776,049.05 = 743,149.06/x
  3. Step 3: Cross multiply
    1,286,880.82x = 1,776,049.05 × 743,149.06
  4. Step 4: Simplify right side
    1,286,880.82x = 1,319,869,182,021.39
  5. Step 5: Solve for x
    x = 1,319,869,182,021.39/1,286,880.82
  6. Step 6: Final answer
    x = 1,025,634.36

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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.