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Finding the Fourth Proportional to 631.37, 945.84 and 528.50

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Solution

The fourth proportional to 631.37, 945.84 and 528.50 is: 791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.37 : 945.84 = 528.50 : x
  2. Step 2: Convert to fraction form
    631.37/945.84 = 528.50/x
  3. Step 3: Cross multiply
    631.37x = 945.84 × 528.50
  4. Step 4: Simplify right side
    631.37x = 499,876.44
  5. Step 5: Solve for x
    x = 499,876.44/631.37
  6. Step 6: Final answer
    x = 791.73

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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.