Home / 3,961,972.90-5,457,728.73-3,379,297.78

Finding the Fourth Proportional to 3,961,972.90, 5,457,728.73 and 3,379,297.78

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Solution

The fourth proportional to 3,961,972.90, 5,457,728.73 and 3,379,297.78 is: 4,655,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961,972.90 : 5,457,728.73 = 3,379,297.78 : x
  2. Step 2: Convert to fraction form
    3,961,972.90/5,457,728.73 = 3,379,297.78/x
  3. Step 3: Cross multiply
    3,961,972.90x = 5,457,728.73 × 3,379,297.78
  4. Step 4: Simplify right side
    3,961,972.90x = 18,443,290,581,131.22
  5. Step 5: Solve for x
    x = 18,443,290,581,131.22/3,961,972.90
  6. Step 6: Final answer
    x = 4,655,077.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.