Home / 766,799.20-1,150,198.80-205,890.40

Finding the Fourth Proportional to 766,799.20, 1,150,198.80 and 205,890.40

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Solution

The fourth proportional to 766,799.20, 1,150,198.80 and 205,890.40 is: 308,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,799.20 : 1,150,198.80 = 205,890.40 : x
  2. Step 2: Convert to fraction form
    766,799.20/1,150,198.80 = 205,890.40/x
  3. Step 3: Cross multiply
    766,799.20x = 1,150,198.80 × 205,890.40
  4. Step 4: Simplify right side
    766,799.20x = 236,814,891,011.52
  5. Step 5: Solve for x
    x = 236,814,891,011.52/766,799.20
  6. Step 6: Final answer
    x = 308,835.60

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Similar ratio
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1.5x scale

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.