Home / 2,188,247.40-3,280,815.90-990,743.40

Finding the Fourth Proportional to 2,188,247.40, 3,280,815.90 and 990,743.40

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Solution

The fourth proportional to 2,188,247.40, 3,280,815.90 and 990,743.40 is: 1,485,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,247.40 : 3,280,815.90 = 990,743.40 : x
  2. Step 2: Convert to fraction form
    2,188,247.40/3,280,815.90 = 990,743.40/x
  3. Step 3: Cross multiply
    2,188,247.40x = 3,280,815.90 × 990,743.40
  4. Step 4: Simplify right side
    2,188,247.40x = 3,250,446,699,540.06
  5. Step 5: Solve for x
    x = 3,250,446,699,540.06/2,188,247.40
  6. Step 6: Final answer
    x = 1,485,410.97

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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.