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Finding the Fourth Proportional to 626.08, 937.74 and 405.94

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Solution

The fourth proportional to 626.08, 937.74 and 405.94 is: 608.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.08 : 937.74 = 405.94 : x
  2. Step 2: Convert to fraction form
    626.08/937.74 = 405.94/x
  3. Step 3: Cross multiply
    626.08x = 937.74 × 405.94
  4. Step 4: Simplify right side
    626.08x = 380,666.18
  5. Step 5: Solve for x
    x = 380,666.18/626.08
  6. Step 6: Final answer
    x = 608.02

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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.