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Finding the Fourth Proportional to 799, 1,103.06 and 612.12

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Solution

The fourth proportional to 799, 1,103.06 and 612.12 is: 845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    799 : 1,103.06 = 612.12 : x
  2. Step 2: Convert to fraction form
    799/1,103.06 = 612.12/x
  3. Step 3: Cross multiply
    799x = 1,103.06 × 612.12
  4. Step 4: Simplify right side
    799x = 675,205.09
  5. Step 5: Solve for x
    x = 675,205.09/799
  6. Step 6: Final answer
    x = 845.06

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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.