Home / 766,273.10-1,057,539.92-422,144.28

Finding the Fourth Proportional to 766,273.10, 1,057,539.92 and 422,144.28

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Solution

The fourth proportional to 766,273.10, 1,057,539.92 and 422,144.28 is: 582,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,273.10 : 1,057,539.92 = 422,144.28 : x
  2. Step 2: Convert to fraction form
    766,273.10/1,057,539.92 = 422,144.28/x
  3. Step 3: Cross multiply
    766,273.10x = 1,057,539.92 × 422,144.28
  4. Step 4: Simplify right side
    766,273.10x = 446,434,428,099.66
  5. Step 5: Solve for x
    x = 446,434,428,099.66/766,273.10
  6. Step 6: Final answer
    x = 582,604.85

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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.