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Finding the Fourth Proportional to 556.36, 831.17 and 481.96

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Solution

The fourth proportional to 556.36, 831.17 and 481.96 is: 720.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.36 : 831.17 = 481.96 : x
  2. Step 2: Convert to fraction form
    556.36/831.17 = 481.96/x
  3. Step 3: Cross multiply
    556.36x = 831.17 × 481.96
  4. Step 4: Simplify right side
    556.36x = 400,590.69
  5. Step 5: Solve for x
    x = 400,590.69/556.36
  6. Step 6: Final answer
    x = 720.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.