Home / 419,769.20-579,295.02-238,477.82

Finding the Fourth Proportional to 419,769.20, 579,295.02 and 238,477.82

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Solution

The fourth proportional to 419,769.20, 579,295.02 and 238,477.82 is: 329,107.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,769.20 : 579,295.02 = 238,477.82 : x
  2. Step 2: Convert to fraction form
    419,769.20/579,295.02 = 238,477.82/x
  3. Step 3: Cross multiply
    419,769.20x = 579,295.02 × 238,477.82
  4. Step 4: Simplify right side
    419,769.20x = 138,149,013,506.46
  5. Step 5: Solve for x
    x = 138,149,013,506.46/419,769.20
  6. Step 6: Final answer
    x = 329,107.07

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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.