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Finding the Fourth Proportional to 996.56, 1,375.33 and 603.62

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Solution

The fourth proportional to 996.56, 1,375.33 and 603.62 is: 833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.56 : 1,375.33 = 603.62 : x
  2. Step 2: Convert to fraction form
    996.56/1,375.33 = 603.62/x
  3. Step 3: Cross multiply
    996.56x = 1,375.33 × 603.62
  4. Step 4: Simplify right side
    996.56x = 830,176.69
  5. Step 5: Solve for x
    x = 830,176.69/996.56
  6. Step 6: Final answer
    x = 833.04

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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.