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Finding the Fourth Proportional to 662,958, 994,437 and 219,726

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Solution

The fourth proportional to 662,958, 994,437 and 219,726 is: 329,589

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,958 : 994,437 = 219,726 : x
  2. Step 2: Convert to fraction form
    662,958/994,437 = 219,726/x
  3. Step 3: Cross multiply
    662,958x = 994,437 × 219,726
  4. Step 4: Simplify right side
    662,958x = 218,503,664,262
  5. Step 5: Solve for x
    x = 218,503,664,262/662,958
  6. Step 6: Final answer
    x = 329,589

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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.