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Finding the Fourth Proportional to 795.85, 1,097.99 and 480.88

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Solution

The fourth proportional to 795.85, 1,097.99 and 480.88 is: 663.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.85 : 1,097.99 = 480.88 : x
  2. Step 2: Convert to fraction form
    795.85/1,097.99 = 480.88/x
  3. Step 3: Cross multiply
    795.85x = 1,097.99 × 480.88
  4. Step 4: Simplify right side
    795.85x = 528,001.43
  5. Step 5: Solve for x
    x = 528,001.43/795.85
  6. Step 6: Final answer
    x = 663.44

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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.