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Finding the Fourth Proportional to 608.34, 910.42 and 424.95

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Solution

The fourth proportional to 608.34, 910.42 and 424.95 is: 635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.34 : 910.42 = 424.95 : x
  2. Step 2: Convert to fraction form
    608.34/910.42 = 424.95/x
  3. Step 3: Cross multiply
    608.34x = 910.42 × 424.95
  4. Step 4: Simplify right side
    608.34x = 386,882.98
  5. Step 5: Solve for x
    x = 386,882.98/608.34
  6. Step 6: Final answer
    x = 635.97

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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.