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Finding the Fourth Proportional to 529.46, 796.94 and 479.15

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Solution

The fourth proportional to 529.46, 796.94 and 479.15 is: 721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.46 : 796.94 = 479.15 : x
  2. Step 2: Convert to fraction form
    529.46/796.94 = 479.15/x
  3. Step 3: Cross multiply
    529.46x = 796.94 × 479.15
  4. Step 4: Simplify right side
    529.46x = 381,851.01
  5. Step 5: Solve for x
    x = 381,851.01/529.46
  6. Step 6: Final answer
    x = 721.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.