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Finding the Fourth Proportional to 529.62, 793.14 and 447.62

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Solution

The fourth proportional to 529.62, 793.14 and 447.62 is: 670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.62 : 793.14 = 447.62 : x
  2. Step 2: Convert to fraction form
    529.62/793.14 = 447.62/x
  3. Step 3: Cross multiply
    529.62x = 793.14 × 447.62
  4. Step 4: Simplify right side
    529.62x = 355,021.36
  5. Step 5: Solve for x
    x = 355,021.36/529.62
  6. Step 6: Final answer
    x = 670.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.