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Finding the Fourth Proportional to 547,775.20, 820,107.60 and 547,775.20

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Solution

The fourth proportional to 547,775.20, 820,107.60 and 547,775.20 is: 820,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,775.20 : 820,107.60 = 547,775.20 : x
  2. Step 2: Convert to fraction form
    547,775.20/820,107.60 = 547,775.20/x
  3. Step 3: Cross multiply
    547,775.20x = 820,107.60 × 547,775.20
  4. Step 4: Simplify right side
    547,775.20x = 449,234,604,611.52
  5. Step 5: Solve for x
    x = 449,234,604,611.52/547,775.20
  6. Step 6: Final answer
    x = 820,107.60

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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.