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Finding the Fourth Proportional to 620.33, 852.48 and 591.80

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Solution

The fourth proportional to 620.33, 852.48 and 591.80 is: 813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.33 : 852.48 = 591.80 : x
  2. Step 2: Convert to fraction form
    620.33/852.48 = 591.80/x
  3. Step 3: Cross multiply
    620.33x = 852.48 × 591.80
  4. Step 4: Simplify right side
    620.33x = 504,493.40
  5. Step 5: Solve for x
    x = 504,493.40/620.33
  6. Step 6: Final answer
    x = 813.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.