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Finding the Fourth Proportional to 798.06, 1,192.21 and 635.92

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Solution

The fourth proportional to 798.06, 1,192.21 and 635.92 is: 949.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.06 : 1,192.21 = 635.92 : x
  2. Step 2: Convert to fraction form
    798.06/1,192.21 = 635.92/x
  3. Step 3: Cross multiply
    798.06x = 1,192.21 × 635.92
  4. Step 4: Simplify right side
    798.06x = 758,150.18
  5. Step 5: Solve for x
    x = 758,150.18/798.06
  6. Step 6: Final answer
    x = 949.99

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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.