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Finding the Fourth Proportional to 650.78, 897.90 and 440.96

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Solution

The fourth proportional to 650.78, 897.90 and 440.96 is: 608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.78 : 897.90 = 440.96 : x
  2. Step 2: Convert to fraction form
    650.78/897.90 = 440.96/x
  3. Step 3: Cross multiply
    650.78x = 897.90 × 440.96
  4. Step 4: Simplify right side
    650.78x = 395,937.98
  5. Step 5: Solve for x
    x = 395,937.98/650.78
  6. Step 6: Final answer
    x = 608.41

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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.