Home / 766,100.64-1,057,057.92-443,791.44

Finding the Fourth Proportional to 766,100.64, 1,057,057.92 and 443,791.44

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Solution

The fourth proportional to 766,100.64, 1,057,057.92 and 443,791.44 is: 612,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,100.64 : 1,057,057.92 = 443,791.44 : x
  2. Step 2: Convert to fraction form
    766,100.64/1,057,057.92 = 443,791.44/x
  3. Step 3: Cross multiply
    766,100.64x = 1,057,057.92 × 443,791.44
  4. Step 4: Simplify right side
    766,100.64x = 469,113,256,480.21
  5. Step 5: Solve for x
    x = 469,113,256,480.21/766,100.64
  6. Step 6: Final answer
    x = 612,338.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.