Home / 3,121,509.12-4,682,638.88-1,099,335.36

Finding the Fourth Proportional to 3,121,509.12, 4,682,638.88 and 1,099,335.36

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Solution

The fourth proportional to 3,121,509.12, 4,682,638.88 and 1,099,335.36 is: 1,649,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,509.12 : 4,682,638.88 = 1,099,335.36 : x
  2. Step 2: Convert to fraction form
    3,121,509.12/4,682,638.88 = 1,099,335.36/x
  3. Step 3: Cross multiply
    3,121,509.12x = 4,682,638.88 × 1,099,335.36
  4. Step 4: Simplify right side
    3,121,509.12x = 5,147,790,498,894.80
  5. Step 5: Solve for x
    x = 5,147,790,498,894.80/3,121,509.12
  6. Step 6: Final answer
    x = 1,649,135.18

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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.