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Finding the Fourth Proportional to 650.87, 896.90 and 464.03

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Solution

The fourth proportional to 650.87, 896.90 and 464.03 is: 639.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.87 : 896.90 = 464.03 : x
  2. Step 2: Convert to fraction form
    650.87/896.90 = 464.03/x
  3. Step 3: Cross multiply
    650.87x = 896.90 × 464.03
  4. Step 4: Simplify right side
    650.87x = 416,181.70
  5. Step 5: Solve for x
    x = 416,181.70/650.87
  6. Step 6: Final answer
    x = 639.43

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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.