Home / 905,997.12-1,250,276.83-498,105.90

Finding the Fourth Proportional to 905,997.12, 1,250,276.83 and 498,105.90

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Solution

The fourth proportional to 905,997.12, 1,250,276.83 and 498,105.90 is: 687,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,997.12 : 1,250,276.83 = 498,105.90 : x
  2. Step 2: Convert to fraction form
    905,997.12/1,250,276.83 = 498,105.90/x
  3. Step 3: Cross multiply
    905,997.12x = 1,250,276.83 × 498,105.90
  4. Step 4: Simplify right side
    905,997.12x = 622,770,269,099.57
  5. Step 5: Solve for x
    x = 622,770,269,099.57/905,997.12
  6. Step 6: Final answer
    x = 687,386.59

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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.