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Finding the Fourth Proportional to 797.02, 1,099.38 and 486.52

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Solution

The fourth proportional to 797.02, 1,099.38 and 486.52 is: 671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.02 : 1,099.38 = 486.52 : x
  2. Step 2: Convert to fraction form
    797.02/1,099.38 = 486.52/x
  3. Step 3: Cross multiply
    797.02x = 1,099.38 × 486.52
  4. Step 4: Simplify right side
    797.02x = 534,870.36
  5. Step 5: Solve for x
    x = 534,870.36/797.02
  6. Step 6: Final answer
    x = 671.09

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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.