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Finding the Fourth Proportional to 619.25, 926.98 and 531.77

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Solution

The fourth proportional to 619.25, 926.98 and 531.77 is: 796.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.25 : 926.98 = 531.77 : x
  2. Step 2: Convert to fraction form
    619.25/926.98 = 531.77/x
  3. Step 3: Cross multiply
    619.25x = 926.98 × 531.77
  4. Step 4: Simplify right side
    619.25x = 492,932.86
  5. Step 5: Solve for x
    x = 492,932.86/619.25
  6. Step 6: Final answer
    x = 796.02

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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.