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Finding the Fourth Proportional to 547,449.80, 819,792.30 and 436,857.80

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Solution

The fourth proportional to 547,449.80, 819,792.30 and 436,857.80 is: 654,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,449.80 : 819,792.30 = 436,857.80 : x
  2. Step 2: Convert to fraction form
    547,449.80/819,792.30 = 436,857.80/x
  3. Step 3: Cross multiply
    547,449.80x = 819,792.30 × 436,857.80
  4. Step 4: Simplify right side
    547,449.80x = 358,132,660,634.94
  5. Step 5: Solve for x
    x = 358,132,660,634.94/547,449.80
  6. Step 6: Final answer
    x = 654,183.56

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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.