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Finding the Fourth Proportional to 650.05, 900.83 and 637.74

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Solution

The fourth proportional to 650.05, 900.83 and 637.74 is: 883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.05 : 900.83 = 637.74 : x
  2. Step 2: Convert to fraction form
    650.05/900.83 = 637.74/x
  3. Step 3: Cross multiply
    650.05x = 900.83 × 637.74
  4. Step 4: Simplify right side
    650.05x = 574,492.14
  5. Step 5: Solve for x
    x = 574,492.14/650.05
  6. Step 6: Final answer
    x = 883.77

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.