Home / 2,659,865.21-3,990,358.24-862,608.55

Finding the Fourth Proportional to 2,659,865.21, 3,990,358.24 and 862,608.55

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Solution

The fourth proportional to 2,659,865.21, 3,990,358.24 and 862,608.55 is: 1,294,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,865.21 : 3,990,358.24 = 862,608.55 : x
  2. Step 2: Convert to fraction form
    2,659,865.21/3,990,358.24 = 862,608.55/x
  3. Step 3: Cross multiply
    2,659,865.21x = 3,990,358.24 × 862,608.55
  4. Step 4: Simplify right side
    2,659,865.21x = 3,442,117,135,386.95
  5. Step 5: Solve for x
    x = 3,442,117,135,386.95/2,659,865.21
  6. Step 6: Final answer
    x = 1,294,094.57

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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.