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Finding the Fourth Proportional to 520.92, 778.84 and 444.80

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Solution

The fourth proportional to 520.92, 778.84 and 444.80 is: 665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.92 : 778.84 = 444.80 : x
  2. Step 2: Convert to fraction form
    520.92/778.84 = 444.80/x
  3. Step 3: Cross multiply
    520.92x = 778.84 × 444.80
  4. Step 4: Simplify right side
    520.92x = 346,428.03
  5. Step 5: Solve for x
    x = 346,428.03/520.92
  6. Step 6: Final answer
    x = 665.03

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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.