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Finding the Fourth Proportional to 620.33, 924.24 and 611.42

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Solution

The fourth proportional to 620.33, 924.24 and 611.42 is: 910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.33 : 924.24 = 611.42 : x
  2. Step 2: Convert to fraction form
    620.33/924.24 = 611.42/x
  3. Step 3: Cross multiply
    620.33x = 924.24 × 611.42
  4. Step 4: Simplify right side
    620.33x = 565,096.49
  5. Step 5: Solve for x
    x = 565,096.49/620.33
  6. Step 6: Final answer
    x = 910.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.