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Finding the Fourth Proportional to 443,653.80, 664,496.55 and 384,604.80

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Solution

The fourth proportional to 443,653.80, 664,496.55 and 384,604.80 is: 576,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,653.80 : 664,496.55 = 384,604.80 : x
  2. Step 2: Convert to fraction form
    443,653.80/664,496.55 = 384,604.80/x
  3. Step 3: Cross multiply
    443,653.80x = 664,496.55 × 384,604.80
  4. Step 4: Simplify right side
    443,653.80x = 255,568,562,713.44
  5. Step 5: Solve for x
    x = 255,568,562,713.44/443,653.80
  6. Step 6: Final answer
    x = 576,054.04

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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.