Home / 3,228,290.89-4,454,711.76-1,987,704.20

Finding the Fourth Proportional to 3,228,290.89, 4,454,711.76 and 1,987,704.20

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Solution

The fourth proportional to 3,228,290.89, 4,454,711.76 and 1,987,704.20 is: 2,742,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228,290.89 : 4,454,711.76 = 1,987,704.20 : x
  2. Step 2: Convert to fraction form
    3,228,290.89/4,454,711.76 = 1,987,704.20/x
  3. Step 3: Cross multiply
    3,228,290.89x = 4,454,711.76 × 1,987,704.20
  4. Step 4: Simplify right side
    3,228,290.89x = 8,854,649,265,202.87
  5. Step 5: Solve for x
    x = 8,854,649,265,202.87/3,228,290.89
  6. Step 6: Final answer
    x = 2,742,828.82

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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.