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Finding the Fourth Proportional to 636,975.56, 955,611 and 216,251.44

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Solution

The fourth proportional to 636,975.56, 955,611 and 216,251.44 is: 324,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,975.56 : 955,611 = 216,251.44 : x
  2. Step 2: Convert to fraction form
    636,975.56/955,611 = 216,251.44/x
  3. Step 3: Cross multiply
    636,975.56x = 955,611 × 216,251.44
  4. Step 4: Simplify right side
    636,975.56x = 206,652,252,440.81
  5. Step 5: Solve for x
    x = 206,652,252,440.81/636,975.56
  6. Step 6: Final answer
    x = 324,427.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.