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Finding the Fourth Proportional to 799.62, 1,102.36 and 562.85

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Solution

The fourth proportional to 799.62, 1,102.36 and 562.85 is: 775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.62 : 1,102.36 = 562.85 : x
  2. Step 2: Convert to fraction form
    799.62/1,102.36 = 562.85/x
  3. Step 3: Cross multiply
    799.62x = 1,102.36 × 562.85
  4. Step 4: Simplify right side
    799.62x = 620,461.60
  5. Step 5: Solve for x
    x = 620,461.60/799.62
  6. Step 6: Final answer
    x = 775.94

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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.