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Finding the Fourth Proportional to 454,682.80, 680,857.80 and 433,687.60

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Solution

The fourth proportional to 454,682.80, 680,857.80 and 433,687.60 is: 649,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,682.80 : 680,857.80 = 433,687.60 : x
  2. Step 2: Convert to fraction form
    454,682.80/680,857.80 = 433,687.60/x
  3. Step 3: Cross multiply
    454,682.80x = 680,857.80 × 433,687.60
  4. Step 4: Simplify right side
    454,682.80x = 295,279,585,223.28
  5. Step 5: Solve for x
    x = 295,279,585,223.28/454,682.80
  6. Step 6: Final answer
    x = 649,418.86

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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.