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Finding the Fourth Proportional to 664,001, 996,010.14 and 220,769

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Solution

The fourth proportional to 664,001, 996,010.14 and 220,769 is: 331,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,001 : 996,010.14 = 220,769 : x
  2. Step 2: Convert to fraction form
    664,001/996,010.14 = 220,769/x
  3. Step 3: Cross multiply
    664,001x = 996,010.14 × 220,769
  4. Step 4: Simplify right side
    664,001x = 219,888,162,597.66
  5. Step 5: Solve for x
    x = 219,888,162,597.66/664,001
  6. Step 6: Final answer
    x = 331,156.37

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1.5x scale

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.