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Finding the Fourth Proportional to 674.64, 924.94 and 662.34

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Solution

The fourth proportional to 674.64, 924.94 and 662.34 is: 908.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.64 : 924.94 = 662.34 : x
  2. Step 2: Convert to fraction form
    674.64/924.94 = 662.34/x
  3. Step 3: Cross multiply
    674.64x = 924.94 × 662.34
  4. Step 4: Simplify right side
    674.64x = 612,621.45
  5. Step 5: Solve for x
    x = 612,621.45/674.64
  6. Step 6: Final answer
    x = 908.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.