Home / 864,794.58-1,297,989.32-438,629.55

Finding the Fourth Proportional to 864,794.58, 1,297,989.32 and 438,629.55

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Solution

The fourth proportional to 864,794.58, 1,297,989.32 and 438,629.55 is: 658,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,794.58 : 1,297,989.32 = 438,629.55 : x
  2. Step 2: Convert to fraction form
    864,794.58/1,297,989.32 = 438,629.55/x
  3. Step 3: Cross multiply
    864,794.58x = 1,297,989.32 × 438,629.55
  4. Step 4: Simplify right side
    864,794.58x = 569,336,469,143.26
  5. Step 5: Solve for x
    x = 569,336,469,143.26/864,794.58
  6. Step 6: Final answer
    x = 658,348.79

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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.