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Finding the Fourth Proportional to 736.40, 1,104.60 and 550.10

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Solution

The fourth proportional to 736.40, 1,104.60 and 550.10 is: 825.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.40 : 1,104.60 = 550.10 : x
  2. Step 2: Convert to fraction form
    736.40/1,104.60 = 550.10/x
  3. Step 3: Cross multiply
    736.40x = 1,104.60 × 550.10
  4. Step 4: Simplify right side
    736.40x = 607,640.46
  5. Step 5: Solve for x
    x = 607,640.46/736.40
  6. Step 6: Final answer
    x = 825.15

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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.