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Finding the Fourth Proportional to 384,008.80, 576,013.20 and 360,680.80

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Solution

The fourth proportional to 384,008.80, 576,013.20 and 360,680.80 is: 541,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,008.80 : 576,013.20 = 360,680.80 : x
  2. Step 2: Convert to fraction form
    384,008.80/576,013.20 = 360,680.80/x
  3. Step 3: Cross multiply
    384,008.80x = 576,013.20 × 360,680.80
  4. Step 4: Simplify right side
    384,008.80x = 207,756,901,786.56
  5. Step 5: Solve for x
    x = 207,756,901,786.56/384,008.80
  6. Step 6: Final answer
    x = 541,021.20

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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.