Home / 725,589.31-1,001,307.33-394,443.11

Finding the Fourth Proportional to 725,589.31, 1,001,307.33 and 394,443.11

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Solution

The fourth proportional to 725,589.31, 1,001,307.33 and 394,443.11 is: 544,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,589.31 : 1,001,307.33 = 394,443.11 : x
  2. Step 2: Convert to fraction form
    725,589.31/1,001,307.33 = 394,443.11/x
  3. Step 3: Cross multiply
    725,589.31x = 1,001,307.33 × 394,443.11
  4. Step 4: Simplify right side
    725,589.31x = 394,958,777,311.00
  5. Step 5: Solve for x
    x = 394,958,777,311.00/725,589.31
  6. Step 6: Final answer
    x = 544,328.27

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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.