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Finding the Fourth Proportional to 650.40, 893.01 and 633.48

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Solution

The fourth proportional to 650.40, 893.01 and 633.48 is: 869.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.40 : 893.01 = 633.48 : x
  2. Step 2: Convert to fraction form
    650.40/893.01 = 633.48/x
  3. Step 3: Cross multiply
    650.40x = 893.01 × 633.48
  4. Step 4: Simplify right side
    650.40x = 565,700.81
  5. Step 5: Solve for x
    x = 565,700.81/650.40
  6. Step 6: Final answer
    x = 869.78

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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.