Home / 420,262.55-579,959.57-238,974.49

Finding the Fourth Proportional to 420,262.55, 579,959.57 and 238,974.49

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Solution

The fourth proportional to 420,262.55, 579,959.57 and 238,974.49 is: 329,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,262.55 : 579,959.57 = 238,974.49 : x
  2. Step 2: Convert to fraction form
    420,262.55/579,959.57 = 238,974.49/x
  3. Step 3: Cross multiply
    420,262.55x = 579,959.57 × 238,974.49
  4. Step 4: Simplify right side
    420,262.55x = 138,595,542,461.37
  5. Step 5: Solve for x
    x = 138,595,542,461.37/420,262.55
  6. Step 6: Final answer
    x = 329,783.23

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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.