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Finding the Fourth Proportional to 535.34, 807.12 and 528.44

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Solution

The fourth proportional to 535.34, 807.12 and 528.44 is: 796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.34 : 807.12 = 528.44 : x
  2. Step 2: Convert to fraction form
    535.34/807.12 = 528.44/x
  3. Step 3: Cross multiply
    535.34x = 807.12 × 528.44
  4. Step 4: Simplify right side
    535.34x = 426,510.46
  5. Step 5: Solve for x
    x = 426,510.46/535.34
  6. Step 6: Final answer
    x = 796.71

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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.