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Finding the Fourth Proportional to 472.36, 652.32 and 411.28

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Solution

The fourth proportional to 472.36, 652.32 and 411.28 is: 567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.36 : 652.32 = 411.28 : x
  2. Step 2: Convert to fraction form
    472.36/652.32 = 411.28/x
  3. Step 3: Cross multiply
    472.36x = 652.32 × 411.28
  4. Step 4: Simplify right side
    472.36x = 268,286.17
  5. Step 5: Solve for x
    x = 268,286.17/472.36
  6. Step 6: Final answer
    x = 567.97

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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.