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Finding the Fourth Proportional to 620.26, 934.07 and 540.07

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Solution

The fourth proportional to 620.26, 934.07 and 540.07 is: 813.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.26 : 934.07 = 540.07 : x
  2. Step 2: Convert to fraction form
    620.26/934.07 = 540.07/x
  3. Step 3: Cross multiply
    620.26x = 934.07 × 540.07
  4. Step 4: Simplify right side
    620.26x = 504,463.18
  5. Step 5: Solve for x
    x = 504,463.18/620.26
  6. Step 6: Final answer
    x = 813.31

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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.