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Finding the Fourth Proportional to 447,082.80, 670,235.40 and 269,401.20

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Solution

The fourth proportional to 447,082.80, 670,235.40 and 269,401.20 is: 403,867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,082.80 : 670,235.40 = 269,401.20 : x
  2. Step 2: Convert to fraction form
    447,082.80/670,235.40 = 269,401.20/x
  3. Step 3: Cross multiply
    447,082.80x = 670,235.40 × 269,401.20
  4. Step 4: Simplify right side
    447,082.80x = 180,562,221,042.48
  5. Step 5: Solve for x
    x = 180,562,221,042.48/447,082.80
  6. Step 6: Final answer
    x = 403,867.52

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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.