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Finding the Fourth Proportional to 682.41, 1,022.27 and 602.22

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Solution

The fourth proportional to 682.41, 1,022.27 and 602.22 is: 902.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.41 : 1,022.27 = 602.22 : x
  2. Step 2: Convert to fraction form
    682.41/1,022.27 = 602.22/x
  3. Step 3: Cross multiply
    682.41x = 1,022.27 × 602.22
  4. Step 4: Simplify right side
    682.41x = 615,628.43
  5. Step 5: Solve for x
    x = 615,628.43/682.41
  6. Step 6: Final answer
    x = 902.14

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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.