Home / 3,986,178-5,979,267-1,292,756.28

Finding the Fourth Proportional to 3,986,178, 5,979,267 and 1,292,756.28

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Solution

The fourth proportional to 3,986,178, 5,979,267 and 1,292,756.28 is: 1,939,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,178 : 5,979,267 = 1,292,756.28 : x
  2. Step 2: Convert to fraction form
    3,986,178/5,979,267 = 1,292,756.28/x
  3. Step 3: Cross multiply
    3,986,178x = 5,979,267 × 1,292,756.28
  4. Step 4: Simplify right side
    3,986,178x = 7,729,734,964,046.76
  5. Step 5: Solve for x
    x = 7,729,734,964,046.76/3,986,178
  6. Step 6: Final answer
    x = 1,939,134.42

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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.