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Finding the Fourth Proportional to 650.43, 974.03 and 406.22

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Solution

The fourth proportional to 650.43, 974.03 and 406.22 is: 608.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.43 : 974.03 = 406.22 : x
  2. Step 2: Convert to fraction form
    650.43/974.03 = 406.22/x
  3. Step 3: Cross multiply
    650.43x = 974.03 × 406.22
  4. Step 4: Simplify right side
    650.43x = 395,663.57
  5. Step 5: Solve for x
    x = 395,663.57/650.43
  6. Step 6: Final answer
    x = 608.31

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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.