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Finding the Fourth Proportional to 657.55, 984.57 and 452.51

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Solution

The fourth proportional to 657.55, 984.57 and 452.51 is: 677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.55 : 984.57 = 452.51 : x
  2. Step 2: Convert to fraction form
    657.55/984.57 = 452.51/x
  3. Step 3: Cross multiply
    657.55x = 984.57 × 452.51
  4. Step 4: Simplify right side
    657.55x = 445,527.77
  5. Step 5: Solve for x
    x = 445,527.77/657.55
  6. Step 6: Final answer
    x = 677.56

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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.