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Finding the Fourth Proportional to 522.20, 719.50 and 460.60

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Solution

The fourth proportional to 522.20, 719.50 and 460.60 is: 634.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.20 : 719.50 = 460.60 : x
  2. Step 2: Convert to fraction form
    522.20/719.50 = 460.60/x
  3. Step 3: Cross multiply
    522.20x = 719.50 × 460.60
  4. Step 4: Simplify right side
    522.20x = 331,401.70
  5. Step 5: Solve for x
    x = 331,401.70/522.20
  6. Step 6: Final answer
    x = 634.63

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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.