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Finding the Fourth Proportional to 797.62, 1,195.11 and 277.35

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Solution

The fourth proportional to 797.62, 1,195.11 and 277.35 is: 415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.62 : 1,195.11 = 277.35 : x
  2. Step 2: Convert to fraction form
    797.62/1,195.11 = 277.35/x
  3. Step 3: Cross multiply
    797.62x = 1,195.11 × 277.35
  4. Step 4: Simplify right side
    797.62x = 331,463.76
  5. Step 5: Solve for x
    x = 331,463.76/797.62
  6. Step 6: Final answer
    x = 415.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.