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Finding the Fourth Proportional to 622.79, 859.52 and 467.27

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Solution

The fourth proportional to 622.79, 859.52 and 467.27 is: 644.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.79 : 859.52 = 467.27 : x
  2. Step 2: Convert to fraction form
    622.79/859.52 = 467.27/x
  3. Step 3: Cross multiply
    622.79x = 859.52 × 467.27
  4. Step 4: Simplify right side
    622.79x = 401,625.57
  5. Step 5: Solve for x
    x = 401,625.57/622.79
  6. Step 6: Final answer
    x = 644.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.