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Finding the Fourth Proportional to 598.11, 825.72 and 402.66

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Solution

The fourth proportional to 598.11, 825.72 and 402.66 is: 555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.11 : 825.72 = 402.66 : x
  2. Step 2: Convert to fraction form
    598.11/825.72 = 402.66/x
  3. Step 3: Cross multiply
    598.11x = 825.72 × 402.66
  4. Step 4: Simplify right side
    598.11x = 332,484.42
  5. Step 5: Solve for x
    x = 332,484.42/598.11
  6. Step 6: Final answer
    x = 555.89

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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.