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Finding the Fourth Proportional to 434.03, 598.11 and 406.22

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Solution

The fourth proportional to 434.03, 598.11 and 406.22 is: 559.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.03 : 598.11 = 406.22 : x
  2. Step 2: Convert to fraction form
    434.03/598.11 = 406.22/x
  3. Step 3: Cross multiply
    434.03x = 598.11 × 406.22
  4. Step 4: Simplify right side
    434.03x = 242,964.24
  5. Step 5: Solve for x
    x = 242,964.24/434.03
  6. Step 6: Final answer
    x = 559.79

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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.