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Finding the Fourth Proportional to 622.08, 859.05 and 522.63

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Solution

The fourth proportional to 622.08, 859.05 and 522.63 is: 721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.08 : 859.05 = 522.63 : x
  2. Step 2: Convert to fraction form
    622.08/859.05 = 522.63/x
  3. Step 3: Cross multiply
    622.08x = 859.05 × 522.63
  4. Step 4: Simplify right side
    622.08x = 448,965.30
  5. Step 5: Solve for x
    x = 448,965.30/622.08
  6. Step 6: Final answer
    x = 721.72

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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.