Home / 766,760.58-1,150,140.68-205,795.08

Finding the Fourth Proportional to 766,760.58, 1,150,140.68 and 205,795.08

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Solution

The fourth proportional to 766,760.58, 1,150,140.68 and 205,795.08 is: 308,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,760.58 : 1,150,140.68 = 205,795.08 : x
  2. Step 2: Convert to fraction form
    766,760.58/1,150,140.68 = 205,795.08/x
  3. Step 3: Cross multiply
    766,760.58x = 1,150,140.68 × 205,795.08
  4. Step 4: Simplify right side
    766,760.58x = 236,693,293,251.85
  5. Step 5: Solve for x
    x = 236,693,293,251.85/766,760.58
  6. Step 6: Final answer
    x = 308,692.57

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Double scale
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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.