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Finding the Fourth Proportional to 797.06, 1,190.72 and 634.92

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Solution

The fourth proportional to 797.06, 1,190.72 and 634.92 is: 948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.06 : 1,190.72 = 634.92 : x
  2. Step 2: Convert to fraction form
    797.06/1,190.72 = 634.92/x
  3. Step 3: Cross multiply
    797.06x = 1,190.72 × 634.92
  4. Step 4: Simplify right side
    797.06x = 756,008.77
  5. Step 5: Solve for x
    x = 756,008.77/797.06
  6. Step 6: Final answer
    x = 948.50

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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.