Home / 2,831,995.20-4,247,992.80-939,028.80

Finding the Fourth Proportional to 2,831,995.20, 4,247,992.80 and 939,028.80

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Solution

The fourth proportional to 2,831,995.20, 4,247,992.80 and 939,028.80 is: 1,408,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831,995.20 : 4,247,992.80 = 939,028.80 : x
  2. Step 2: Convert to fraction form
    2,831,995.20/4,247,992.80 = 939,028.80/x
  3. Step 3: Cross multiply
    2,831,995.20x = 4,247,992.80 × 939,028.80
  4. Step 4: Simplify right side
    2,831,995.20x = 3,988,987,581,392.64
  5. Step 5: Solve for x
    x = 3,988,987,581,392.64/2,831,995.20
  6. Step 6: Final answer
    x = 1,408,543.20

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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.