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Finding the Fourth Proportional to 797.12, 1,100.04 and 465.49

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Solution

The fourth proportional to 797.12, 1,100.04 and 465.49 is: 642.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.12 : 1,100.04 = 465.49 : x
  2. Step 2: Convert to fraction form
    797.12/1,100.04 = 465.49/x
  3. Step 3: Cross multiply
    797.12x = 1,100.04 × 465.49
  4. Step 4: Simplify right side
    797.12x = 512,057.25
  5. Step 5: Solve for x
    x = 512,057.25/797.12
  6. Step 6: Final answer
    x = 642.39

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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.