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Finding the Fourth Proportional to 620.98, 930.26 and 496.07

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Solution

The fourth proportional to 620.98, 930.26 and 496.07 is: 743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.98 : 930.26 = 496.07 : x
  2. Step 2: Convert to fraction form
    620.98/930.26 = 496.07/x
  3. Step 3: Cross multiply
    620.98x = 930.26 × 496.07
  4. Step 4: Simplify right side
    620.98x = 461,470.14
  5. Step 5: Solve for x
    x = 461,470.14/620.98
  6. Step 6: Final answer
    x = 743.13

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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.