Home / 766,754.64-1,150,131.80-205,789.14

Finding the Fourth Proportional to 766,754.64, 1,150,131.80 and 205,789.14

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Solution

The fourth proportional to 766,754.64, 1,150,131.80 and 205,789.14 is: 308,683.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,754.64 : 1,150,131.80 = 205,789.14 : x
  2. Step 2: Convert to fraction form
    766,754.64/1,150,131.80 = 205,789.14/x
  3. Step 3: Cross multiply
    766,754.64x = 1,150,131.80 × 205,789.14
  4. Step 4: Simplify right side
    766,754.64x = 236,684,634,008.65
  5. Step 5: Solve for x
    x = 236,684,634,008.65/766,754.64
  6. Step 6: Final answer
    x = 308,683.67

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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.