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Finding the Fourth Proportional to 788.48, 1,181.02 and 498.52

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Solution

The fourth proportional to 788.48, 1,181.02 and 498.52 is: 746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    788.48 : 1,181.02 = 498.52 : x
  2. Step 2: Convert to fraction form
    788.48/1,181.02 = 498.52/x
  3. Step 3: Cross multiply
    788.48x = 1,181.02 × 498.52
  4. Step 4: Simplify right side
    788.48x = 588,762.09
  5. Step 5: Solve for x
    x = 588,762.09/788.48
  6. Step 6: Final answer
    x = 746.71

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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.