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Finding the Fourth Proportional to 483.44, 727.75 and 412.97

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Solution

The fourth proportional to 483.44, 727.75 and 412.97 is: 621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.44 : 727.75 = 412.97 : x
  2. Step 2: Convert to fraction form
    483.44/727.75 = 412.97/x
  3. Step 3: Cross multiply
    483.44x = 727.75 × 412.97
  4. Step 4: Simplify right side
    483.44x = 300,535.79
  5. Step 5: Solve for x
    x = 300,535.79/483.44
  6. Step 6: Final answer
    x = 621.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.