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Finding the Fourth Proportional to 519.96, 779.94 and 375.96

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Solution

The fourth proportional to 519.96, 779.94 and 375.96 is: 563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.96 : 779.94 = 375.96 : x
  2. Step 2: Convert to fraction form
    519.96/779.94 = 375.96/x
  3. Step 3: Cross multiply
    519.96x = 779.94 × 375.96
  4. Step 4: Simplify right side
    519.96x = 293,226.24
  5. Step 5: Solve for x
    x = 293,226.24/519.96
  6. Step 6: Final answer
    x = 563.94

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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.