Home / 3,217,229.89-4,825,840.95-821,074.78

Finding the Fourth Proportional to 3,217,229.89, 4,825,840.95 and 821,074.78

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Solution

The fourth proportional to 3,217,229.89, 4,825,840.95 and 821,074.78 is: 1,231,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,229.89 : 4,825,840.95 = 821,074.78 : x
  2. Step 2: Convert to fraction form
    3,217,229.89/4,825,840.95 = 821,074.78/x
  3. Step 3: Cross multiply
    3,217,229.89x = 4,825,840.95 × 821,074.78
  4. Step 4: Simplify right side
    3,217,229.89x = 3,962,376,296,336.24
  5. Step 5: Solve for x
    x = 3,962,376,296,336.24/3,217,229.89
  6. Step 6: Final answer
    x = 1,231,611.18

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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.