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Finding the Fourth Proportional to 519.04, 777.56 and 323.42

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Solution

The fourth proportional to 519.04, 777.56 and 323.42 is: 484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.04 : 777.56 = 323.42 : x
  2. Step 2: Convert to fraction form
    519.04/777.56 = 323.42/x
  3. Step 3: Cross multiply
    519.04x = 777.56 × 323.42
  4. Step 4: Simplify right side
    519.04x = 251,478.46
  5. Step 5: Solve for x
    x = 251,478.46/519.04
  6. Step 6: Final answer
    x = 484.51

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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.