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Finding the Fourth Proportional to 796.96, 1,099.93 and 465.39

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Solution

The fourth proportional to 796.96, 1,099.93 and 465.39 is: 642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.96 : 1,099.93 = 465.39 : x
  2. Step 2: Convert to fraction form
    796.96/1,099.93 = 465.39/x
  3. Step 3: Cross multiply
    796.96x = 1,099.93 × 465.39
  4. Step 4: Simplify right side
    796.96x = 511,890.92
  5. Step 5: Solve for x
    x = 511,890.92/796.96
  6. Step 6: Final answer
    x = 642.30

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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.