Home / 3,986,180-5,979,270-1,292,758.28

Finding the Fourth Proportional to 3,986,180, 5,979,270 and 1,292,758.28

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Solution

The fourth proportional to 3,986,180, 5,979,270 and 1,292,758.28 is: 1,939,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,180 : 5,979,270 = 1,292,758.28 : x
  2. Step 2: Convert to fraction form
    3,986,180/5,979,270 = 1,292,758.28/x
  3. Step 3: Cross multiply
    3,986,180x = 5,979,270 × 1,292,758.28
  4. Step 4: Simplify right side
    3,986,180x = 7,729,750,800,855.60
  5. Step 5: Solve for x
    x = 7,729,750,800,855.60/3,986,180
  6. Step 6: Final answer
    x = 1,939,137.42

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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.