Home / 419,836.28-579,389.82-238,579.07

Finding the Fourth Proportional to 419,836.28, 579,389.82 and 238,579.07

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Solution

The fourth proportional to 419,836.28, 579,389.82 and 238,579.07 is: 329,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,836.28 : 579,389.82 = 238,579.07 : x
  2. Step 2: Convert to fraction form
    419,836.28/579,389.82 = 238,579.07/x
  3. Step 3: Cross multiply
    419,836.28x = 579,389.82 × 238,579.07
  4. Step 4: Simplify right side
    419,836.28x = 138,230,285,871.54
  5. Step 5: Solve for x
    x = 138,230,285,871.54/419,836.28
  6. Step 6: Final answer
    x = 329,248.07

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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.