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Finding the Fourth Proportional to 659,100.56, 988,650.84 and 209,819.48

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Solution

The fourth proportional to 659,100.56, 988,650.84 and 209,819.48 is: 314,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,100.56 : 988,650.84 = 209,819.48 : x
  2. Step 2: Convert to fraction form
    659,100.56/988,650.84 = 209,819.48/x
  3. Step 3: Cross multiply
    659,100.56x = 988,650.84 × 209,819.48
  4. Step 4: Simplify right side
    659,100.56x = 207,438,205,150.36
  5. Step 5: Solve for x
    x = 207,438,205,150.36/659,100.56
  6. Step 6: Final answer
    x = 314,729.22

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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.