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Finding the Fourth Proportional to 736.09, 1,103.73 and 324.74

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Solution

The fourth proportional to 736.09, 1,103.73 and 324.74 is: 486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.09 : 1,103.73 = 324.74 : x
  2. Step 2: Convert to fraction form
    736.09/1,103.73 = 324.74/x
  3. Step 3: Cross multiply
    736.09x = 1,103.73 × 324.74
  4. Step 4: Simplify right side
    736.09x = 358,425.28
  5. Step 5: Solve for x
    x = 358,425.28/736.09
  6. Step 6: Final answer
    x = 486.93

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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.