Home / 1,331,310.20-1,996,965.30-384,711.80

Finding the Fourth Proportional to 1,331,310.20, 1,996,965.30 and 384,711.80

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Solution

The fourth proportional to 1,331,310.20, 1,996,965.30 and 384,711.80 is: 577,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,310.20 : 1,996,965.30 = 384,711.80 : x
  2. Step 2: Convert to fraction form
    1,331,310.20/1,996,965.30 = 384,711.80/x
  3. Step 3: Cross multiply
    1,331,310.20x = 1,996,965.30 × 384,711.80
  4. Step 4: Simplify right side
    1,331,310.20x = 768,256,115,100.54
  5. Step 5: Solve for x
    x = 768,256,115,100.54/1,331,310.20
  6. Step 6: Final answer
    x = 577,067.70

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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.