Home / 1,379,220.31-1,904,213.09-889,408.85

Finding the Fourth Proportional to 1,379,220.31, 1,904,213.09 and 889,408.85

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Solution

The fourth proportional to 1,379,220.31, 1,904,213.09 and 889,408.85 is: 1,227,957.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,220.31 : 1,904,213.09 = 889,408.85 : x
  2. Step 2: Convert to fraction form
    1,379,220.31/1,904,213.09 = 889,408.85/x
  3. Step 3: Cross multiply
    1,379,220.31x = 1,904,213.09 × 889,408.85
  4. Step 4: Simplify right side
    1,379,220.31x = 1,693,623,970,084.80
  5. Step 5: Solve for x
    x = 1,693,623,970,084.80/1,379,220.31
  6. Step 6: Final answer
    x = 1,227,957.54

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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.