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Finding the Fourth Proportional to 828.96, 1,143.73 and 514.50

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Solution

The fourth proportional to 828.96, 1,143.73 and 514.50 is: 709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    828.96 : 1,143.73 = 514.50 : x
  2. Step 2: Convert to fraction form
    828.96/1,143.73 = 514.50/x
  3. Step 3: Cross multiply
    828.96x = 1,143.73 × 514.50
  4. Step 4: Simplify right side
    828.96x = 588,449.09
  5. Step 5: Solve for x
    x = 588,449.09/828.96
  6. Step 6: Final answer
    x = 709.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.