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Finding the Fourth Proportional to 936.43, 1,402.20 and 501.46

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Solution

The fourth proportional to 936.43, 1,402.20 and 501.46 is: 750.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.43 : 1,402.20 = 501.46 : x
  2. Step 2: Convert to fraction form
    936.43/1,402.20 = 501.46/x
  3. Step 3: Cross multiply
    936.43x = 1,402.20 × 501.46
  4. Step 4: Simplify right side
    936.43x = 703,147.21
  5. Step 5: Solve for x
    x = 703,147.21/936.43
  6. Step 6: Final answer
    x = 750.88

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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.