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Finding the Fourth Proportional to 617.62, 926.44 and 480.28

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Solution

The fourth proportional to 617.62, 926.44 and 480.28 is: 720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.62 : 926.44 = 480.28 : x
  2. Step 2: Convert to fraction form
    617.62/926.44 = 480.28/x
  3. Step 3: Cross multiply
    617.62x = 926.44 × 480.28
  4. Step 4: Simplify right side
    617.62x = 444,950.60
  5. Step 5: Solve for x
    x = 444,950.60/617.62
  6. Step 6: Final answer
    x = 720.43

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Half scale
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Double scale
Find fourth proportional to 618.62, 927.94 and 481.28
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.