Home / 2,140,493.28-3,211,231.32-720,511.44

Finding the Fourth Proportional to 2,140,493.28, 3,211,231.32 and 720,511.44

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Solution

The fourth proportional to 2,140,493.28, 3,211,231.32 and 720,511.44 is: 1,080,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,493.28 : 3,211,231.32 = 720,511.44 : x
  2. Step 2: Convert to fraction form
    2,140,493.28/3,211,231.32 = 720,511.44/x
  3. Step 3: Cross multiply
    2,140,493.28x = 3,211,231.32 × 720,511.44
  4. Step 4: Simplify right side
    2,140,493.28x = 2,313,728,902,546.30
  5. Step 5: Solve for x
    x = 2,313,728,902,546.30/2,140,493.28
  6. Step 6: Final answer
    x = 1,080,932.57

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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.