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Finding the Fourth Proportional to 674.35, 929.95 and 441.43

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Solution

The fourth proportional to 674.35, 929.95 and 441.43 is: 608.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.35 : 929.95 = 441.43 : x
  2. Step 2: Convert to fraction form
    674.35/929.95 = 441.43/x
  3. Step 3: Cross multiply
    674.35x = 929.95 × 441.43
  4. Step 4: Simplify right side
    674.35x = 410,507.83
  5. Step 5: Solve for x
    x = 410,507.83/674.35
  6. Step 6: Final answer
    x = 608.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.