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Finding the Fourth Proportional to 620.02, 933.67 and 539.83

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Solution

The fourth proportional to 620.02, 933.67 and 539.83 is: 812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.02 : 933.67 = 539.83 : x
  2. Step 2: Convert to fraction form
    620.02/933.67 = 539.83/x
  3. Step 3: Cross multiply
    620.02x = 933.67 × 539.83
  4. Step 4: Simplify right side
    620.02x = 504,023.08
  5. Step 5: Solve for x
    x = 504,023.08/620.02
  6. Step 6: Final answer
    x = 812.91

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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.