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Finding the Fourth Proportional to 797.62, 1,100.34 and 576.22

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Solution

The fourth proportional to 797.62, 1,100.34 and 576.22 is: 794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.62 : 1,100.34 = 576.22 : x
  2. Step 2: Convert to fraction form
    797.62/1,100.34 = 576.22/x
  3. Step 3: Cross multiply
    797.62x = 1,100.34 × 576.22
  4. Step 4: Simplify right side
    797.62x = 634,037.91
  5. Step 5: Solve for x
    x = 634,037.91/797.62
  6. Step 6: Final answer
    x = 794.91

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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.