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Finding the Fourth Proportional to 598.24, 824.79 and 520.30

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Solution

The fourth proportional to 598.24, 824.79 and 520.30 is: 717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.24 : 824.79 = 520.30 : x
  2. Step 2: Convert to fraction form
    598.24/824.79 = 520.30/x
  3. Step 3: Cross multiply
    598.24x = 824.79 × 520.30
  4. Step 4: Simplify right side
    598.24x = 429,138.24
  5. Step 5: Solve for x
    x = 429,138.24/598.24
  6. Step 6: Final answer
    x = 717.33

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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.