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Finding the Fourth Proportional to 618.06, 927.54 and 480.76

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Solution

The fourth proportional to 618.06, 927.54 and 480.76 is: 721.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.06 : 927.54 = 480.76 : x
  2. Step 2: Convert to fraction form
    618.06/927.54 = 480.76/x
  3. Step 3: Cross multiply
    618.06x = 927.54 × 480.76
  4. Step 4: Simplify right side
    618.06x = 445,924.13
  5. Step 5: Solve for x
    x = 445,924.13/618.06
  6. Step 6: Final answer
    x = 721.49

Related Problems

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Half scale
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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.