Home / 3,986,350.40-5,980,475.94-1,290,676.44

Finding the Fourth Proportional to 3,986,350.40, 5,980,475.94 and 1,290,676.44

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Solution

The fourth proportional to 3,986,350.40, 5,980,475.94 and 1,290,676.44 is: 1,936,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,350.40 : 5,980,475.94 = 1,290,676.44 : x
  2. Step 2: Convert to fraction form
    3,986,350.40/5,980,475.94 = 1,290,676.44/x
  3. Step 3: Cross multiply
    3,986,350.40x = 5,980,475.94 × 1,290,676.44
  4. Step 4: Simplify right side
    3,986,350.40x = 7,718,859,395,744.85
  5. Step 5: Solve for x
    x = 7,718,859,395,744.85/3,986,350.40
  6. Step 6: Final answer
    x = 1,936,322.36

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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.