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Finding the Fourth Proportional to 795.49, 1,097.89 and 480.94

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Solution

The fourth proportional to 795.49, 1,097.89 and 480.94 is: 663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.49 : 1,097.89 = 480.94 : x
  2. Step 2: Convert to fraction form
    795.49/1,097.89 = 480.94/x
  3. Step 3: Cross multiply
    795.49x = 1,097.89 × 480.94
  4. Step 4: Simplify right side
    795.49x = 528,015.27
  5. Step 5: Solve for x
    x = 528,015.27/795.49
  6. Step 6: Final answer
    x = 663.76

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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.