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Finding the Fourth Proportional to 609,829.70, 914,889.90 and 210,473.96

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Solution

The fourth proportional to 609,829.70, 914,889.90 and 210,473.96 is: 315,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,829.70 : 914,889.90 = 210,473.96 : x
  2. Step 2: Convert to fraction form
    609,829.70/914,889.90 = 210,473.96/x
  3. Step 3: Cross multiply
    609,829.70x = 914,889.90 × 210,473.96
  4. Step 4: Simplify right side
    609,829.70x = 192,560,500,217.00
  5. Step 5: Solve for x
    x = 192,560,500,217.00/609,829.70
  6. Step 6: Final answer
    x = 315,761.11

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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.