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Finding the Fourth Proportional to 634.50, 954.99 and 540.54

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Solution

The fourth proportional to 634.50, 954.99 and 540.54 is: 813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.50 : 954.99 = 540.54 : x
  2. Step 2: Convert to fraction form
    634.50/954.99 = 540.54/x
  3. Step 3: Cross multiply
    634.50x = 954.99 × 540.54
  4. Step 4: Simplify right side
    634.50x = 516,210.29
  5. Step 5: Solve for x
    x = 516,210.29/634.50
  6. Step 6: Final answer
    x = 813.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.