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Finding the Fourth Proportional to 796.36, 1,099.18 and 619.32

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Solution

The fourth proportional to 796.36, 1,099.18 and 619.32 is: 854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.36 : 1,099.18 = 619.32 : x
  2. Step 2: Convert to fraction form
    796.36/1,099.18 = 619.32/x
  3. Step 3: Cross multiply
    796.36x = 1,099.18 × 619.32
  4. Step 4: Simplify right side
    796.36x = 680,744.16
  5. Step 5: Solve for x
    x = 680,744.16/796.36
  6. Step 6: Final answer
    x = 854.82

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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.