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Finding the Fourth Proportional to 529.77, 793.67 and 443.66

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Solution

The fourth proportional to 529.77, 793.67 and 443.66 is: 664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.77 : 793.67 = 443.66 : x
  2. Step 2: Convert to fraction form
    529.77/793.67 = 443.66/x
  3. Step 3: Cross multiply
    529.77x = 793.67 × 443.66
  4. Step 4: Simplify right side
    529.77x = 352,122.73
  5. Step 5: Solve for x
    x = 352,122.73/529.77
  6. Step 6: Final answer
    x = 664.67

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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.