Home / 820,249.20-1,230,373.80-521,067.60

Finding the Fourth Proportional to 820,249.20, 1,230,373.80 and 521,067.60

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Solution

The fourth proportional to 820,249.20, 1,230,373.80 and 521,067.60 is: 781,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,249.20 : 1,230,373.80 = 521,067.60 : x
  2. Step 2: Convert to fraction form
    820,249.20/1,230,373.80 = 521,067.60/x
  3. Step 3: Cross multiply
    820,249.20x = 1,230,373.80 × 521,067.60
  4. Step 4: Simplify right side
    820,249.20x = 641,107,923,068.88
  5. Step 5: Solve for x
    x = 641,107,923,068.88/820,249.20
  6. Step 6: Final answer
    x = 781,601.40

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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.