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Finding the Fourth Proportional to 619.57, 930.03 and 327.43

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Solution

The fourth proportional to 619.57, 930.03 and 327.43 is: 491.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.57 : 930.03 = 327.43 : x
  2. Step 2: Convert to fraction form
    619.57/930.03 = 327.43/x
  3. Step 3: Cross multiply
    619.57x = 930.03 × 327.43
  4. Step 4: Simplify right side
    619.57x = 304,519.72
  5. Step 5: Solve for x
    x = 304,519.72/619.57
  6. Step 6: Final answer
    x = 491.50

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Double scale
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Similar ratio
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1.5x scale

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.