Home / 419,961.70-579,544.23-238,659.40

Finding the Fourth Proportional to 419,961.70, 579,544.23 and 238,659.40

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Solution

The fourth proportional to 419,961.70, 579,544.23 and 238,659.40 is: 329,348.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,961.70 : 579,544.23 = 238,659.40 : x
  2. Step 2: Convert to fraction form
    419,961.70/579,544.23 = 238,659.40/x
  3. Step 3: Cross multiply
    419,961.70x = 579,544.23 × 238,659.40
  4. Step 4: Simplify right side
    419,961.70x = 138,313,678,205.26
  5. Step 5: Solve for x
    x = 138,313,678,205.26/419,961.70
  6. Step 6: Final answer
    x = 329,348.31

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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.