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Finding the Fourth Proportional to 3,738,634.50, 5,607,949.70 and 898,745.76

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Solution

The fourth proportional to 3,738,634.50, 5,607,949.70 and 898,745.76 is: 1,348,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738,634.50 : 5,607,949.70 = 898,745.76 : x
  2. Step 2: Convert to fraction form
    3,738,634.50/5,607,949.70 = 898,745.76/x
  3. Step 3: Cross multiply
    3,738,634.50x = 5,607,949.70 × 898,745.76
  4. Step 4: Simplify right side
    3,738,634.50x = 5,040,121,015,168.27
  5. Step 5: Solve for x
    x = 5,040,121,015,168.27/3,738,634.50
  6. Step 6: Final answer
    x = 1,348,118.15

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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.