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Finding the Fourth Proportional to 608.34, 912.51 and 486.44

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Solution

The fourth proportional to 608.34, 912.51 and 486.44 is: 729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.34 : 912.51 = 486.44 : x
  2. Step 2: Convert to fraction form
    608.34/912.51 = 486.44/x
  3. Step 3: Cross multiply
    608.34x = 912.51 × 486.44
  4. Step 4: Simplify right side
    608.34x = 443,881.36
  5. Step 5: Solve for x
    x = 443,881.36/608.34
  6. Step 6: Final answer
    x = 729.66

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Similar ratio
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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.