Home / 419,760.59-579,285.26-238,503.21

Finding the Fourth Proportional to 419,760.59, 579,285.26 and 238,503.21

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Solution

The fourth proportional to 419,760.59, 579,285.26 and 238,503.21 is: 329,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,760.59 : 579,285.26 = 238,503.21 : x
  2. Step 2: Convert to fraction form
    419,760.59/579,285.26 = 238,503.21/x
  3. Step 3: Cross multiply
    419,760.59x = 579,285.26 × 238,503.21
  4. Step 4: Simplify right side
    419,760.59x = 138,161,392,823.17
  5. Step 5: Solve for x
    x = 138,161,392,823.17/419,760.59
  6. Step 6: Final answer
    x = 329,143.32

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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.