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Finding the Fourth Proportional to 607.41, 911.12 and 486.44

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Solution

The fourth proportional to 607.41, 911.12 and 486.44 is: 729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.41 : 911.12 = 486.44 : x
  2. Step 2: Convert to fraction form
    607.41/911.12 = 486.44/x
  3. Step 3: Cross multiply
    607.41x = 911.12 × 486.44
  4. Step 4: Simplify right side
    607.41x = 443,198.23
  5. Step 5: Solve for x
    x = 443,198.23/607.41
  6. Step 6: Final answer
    x = 729.65

Related Problems

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Half scale
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Double scale
Find fourth proportional to 608.41, 912.62 and 487.44
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.