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Finding the Fourth Proportional to 484.66, 726.13 and 434.26

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Solution

The fourth proportional to 484.66, 726.13 and 434.26 is: 650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.66 : 726.13 = 434.26 : x
  2. Step 2: Convert to fraction form
    484.66/726.13 = 434.26/x
  3. Step 3: Cross multiply
    484.66x = 726.13 × 434.26
  4. Step 4: Simplify right side
    484.66x = 315,329.21
  5. Step 5: Solve for x
    x = 315,329.21/484.66
  6. Step 6: Final answer
    x = 650.62

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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.