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Finding the Fourth Proportional to 797.03, 1,099.87 and 465.43

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Solution

The fourth proportional to 797.03, 1,099.87 and 465.43 is: 642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.03 : 1,099.87 = 465.43 : x
  2. Step 2: Convert to fraction form
    797.03/1,099.87 = 465.43/x
  3. Step 3: Cross multiply
    797.03x = 1,099.87 × 465.43
  4. Step 4: Simplify right side
    797.03x = 511,912.49
  5. Step 5: Solve for x
    x = 511,912.49/797.03
  6. Step 6: Final answer
    x = 642.28

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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.