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Finding the Fourth Proportional to 534.92, 736.60 and 522.80

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Solution

The fourth proportional to 534.92, 736.60 and 522.80 is: 719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.92 : 736.60 = 522.80 : x
  2. Step 2: Convert to fraction form
    534.92/736.60 = 522.80/x
  3. Step 3: Cross multiply
    534.92x = 736.60 × 522.80
  4. Step 4: Simplify right side
    534.92x = 385,094.48
  5. Step 5: Solve for x
    x = 385,094.48/534.92
  6. Step 6: Final answer
    x = 719.91

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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.