Home / 1,321,044.20-1,982,353.59-479,661.56

Finding the Fourth Proportional to 1,321,044.20, 1,982,353.59 and 479,661.56

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Solution

The fourth proportional to 1,321,044.20, 1,982,353.59 and 479,661.56 is: 719,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,044.20 : 1,982,353.59 = 479,661.56 : x
  2. Step 2: Convert to fraction form
    1,321,044.20/1,982,353.59 = 479,661.56/x
  3. Step 3: Cross multiply
    1,321,044.20x = 1,982,353.59 × 479,661.56
  4. Step 4: Simplify right side
    1,321,044.20x = 950,858,805,539.23
  5. Step 5: Solve for x
    x = 950,858,805,539.23/1,321,044.20
  6. Step 6: Final answer
    x = 719,778.19

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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.