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Finding the Fourth Proportional to 6,278,928, 9,419,796 and 2,289,840

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Solution

The fourth proportional to 6,278,928, 9,419,796 and 2,289,840 is: 3,435,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278,928 : 9,419,796 = 2,289,840 : x
  2. Step 2: Convert to fraction form
    6,278,928/9,419,796 = 2,289,840/x
  3. Step 3: Cross multiply
    6,278,928x = 9,419,796 × 2,289,840
  4. Step 4: Simplify right side
    6,278,928x = 21,569,825,672,640
  5. Step 5: Solve for x
    x = 21,569,825,672,640/6,278,928
  6. Step 6: Final answer
    x = 3,435,272.02

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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.