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Finding the Fourth Proportional to 519.54, 778.62 and 464.37

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Solution

The fourth proportional to 519.54, 778.62 and 464.37 is: 695.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.54 : 778.62 = 464.37 : x
  2. Step 2: Convert to fraction form
    519.54/778.62 = 464.37/x
  3. Step 3: Cross multiply
    519.54x = 778.62 × 464.37
  4. Step 4: Simplify right side
    519.54x = 361,566.59
  5. Step 5: Solve for x
    x = 361,566.59/519.54
  6. Step 6: Final answer
    x = 695.94

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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.