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Finding the Fourth Proportional to 797.92, 1,101.63 and 518.60

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Solution

The fourth proportional to 797.92, 1,101.63 and 518.60 is: 716.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.92 : 1,101.63 = 518.60 : x
  2. Step 2: Convert to fraction form
    797.92/1,101.63 = 518.60/x
  3. Step 3: Cross multiply
    797.92x = 1,101.63 × 518.60
  4. Step 4: Simplify right side
    797.92x = 571,310.02
  5. Step 5: Solve for x
    x = 571,310.02/797.92
  6. Step 6: Final answer
    x = 716.00

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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.