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Finding the Fourth Proportional to 650.13, 971.60 and 528.53

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Solution

The fourth proportional to 650.13, 971.60 and 528.53 is: 789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.13 : 971.60 = 528.53 : x
  2. Step 2: Convert to fraction form
    650.13/971.60 = 528.53/x
  3. Step 3: Cross multiply
    650.13x = 971.60 × 528.53
  4. Step 4: Simplify right side
    650.13x = 513,512.25
  5. Step 5: Solve for x
    x = 513,512.25/650.13
  6. Step 6: Final answer
    x = 789.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.