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Finding the Fourth Proportional to 603.54, 831.33 and 563.22

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Solution

The fourth proportional to 603.54, 831.33 and 563.22 is: 775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.54 : 831.33 = 563.22 : x
  2. Step 2: Convert to fraction form
    603.54/831.33 = 563.22/x
  3. Step 3: Cross multiply
    603.54x = 831.33 × 563.22
  4. Step 4: Simplify right side
    603.54x = 468,221.68
  5. Step 5: Solve for x
    x = 468,221.68/603.54
  6. Step 6: Final answer
    x = 775.79

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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.