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Finding the Fourth Proportional to 796.01, 1,099.91 and 622.67

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Solution

The fourth proportional to 796.01, 1,099.91 and 622.67 is: 860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.01 : 1,099.91 = 622.67 : x
  2. Step 2: Convert to fraction form
    796.01/1,099.91 = 622.67/x
  3. Step 3: Cross multiply
    796.01x = 1,099.91 × 622.67
  4. Step 4: Simplify right side
    796.01x = 684,877.02
  5. Step 5: Solve for x
    x = 684,877.02/796.01
  6. Step 6: Final answer
    x = 860.39

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1.5x scale

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.