Home / 447,221.80-670,443.90-269,540.20

Finding the Fourth Proportional to 447,221.80, 670,443.90 and 269,540.20

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Solution

The fourth proportional to 447,221.80, 670,443.90 and 269,540.20 is: 404,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,221.80 : 670,443.90 = 269,540.20 : x
  2. Step 2: Convert to fraction form
    447,221.80/670,443.90 = 269,540.20/x
  3. Step 3: Cross multiply
    447,221.80x = 670,443.90 × 269,540.20
  4. Step 4: Simplify right side
    447,221.80x = 180,711,582,894.78
  5. Step 5: Solve for x
    x = 180,711,582,894.78/447,221.80
  6. Step 6: Final answer
    x = 404,075.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.