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Finding the Fourth Proportional to 832.75, 1,150.37 and 648.61

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Solution

The fourth proportional to 832.75, 1,150.37 and 648.61 is: 896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.75 : 1,150.37 = 648.61 : x
  2. Step 2: Convert to fraction form
    832.75/1,150.37 = 648.61/x
  3. Step 3: Cross multiply
    832.75x = 1,150.37 × 648.61
  4. Step 4: Simplify right side
    832.75x = 746,137.80
  5. Step 5: Solve for x
    x = 746,137.80/832.75
  6. Step 6: Final answer
    x = 896.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.