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Finding the Fourth Proportional to 737.48, 1,105.19 and 554.66

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Solution

The fourth proportional to 737.48, 1,105.19 and 554.66 is: 831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.48 : 1,105.19 = 554.66 : x
  2. Step 2: Convert to fraction form
    737.48/1,105.19 = 554.66/x
  3. Step 3: Cross multiply
    737.48x = 1,105.19 × 554.66
  4. Step 4: Simplify right side
    737.48x = 613,004.69
  5. Step 5: Solve for x
    x = 613,004.69/737.48
  6. Step 6: Final answer
    x = 831.22

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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.