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Finding the Fourth Proportional to 799.07, 1,103.06 and 622.50

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Solution

The fourth proportional to 799.07, 1,103.06 and 622.50 is: 859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.07 : 1,103.06 = 622.50 : x
  2. Step 2: Convert to fraction form
    799.07/1,103.06 = 622.50/x
  3. Step 3: Cross multiply
    799.07x = 1,103.06 × 622.50
  4. Step 4: Simplify right side
    799.07x = 686,651.74
  5. Step 5: Solve for x
    x = 686,651.74/799.07
  6. Step 6: Final answer
    x = 859.32

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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.