Home / 2,639,404.56-3,959,175.63-842,285.61

Finding the Fourth Proportional to 2,639,404.56, 3,959,175.63 and 842,285.61

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Solution

The fourth proportional to 2,639,404.56, 3,959,175.63 and 842,285.61 is: 1,263,450.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,404.56 : 3,959,175.63 = 842,285.61 : x
  2. Step 2: Convert to fraction form
    2,639,404.56/3,959,175.63 = 842,285.61/x
  3. Step 3: Cross multiply
    2,639,404.56x = 3,959,175.63 × 842,285.61
  4. Step 4: Simplify right side
    2,639,404.56x = 3,334,756,660,611.68
  5. Step 5: Solve for x
    x = 3,334,756,660,611.68/2,639,404.56
  6. Step 6: Final answer
    x = 1,263,450.37

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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.