Home / 752,361.94-1,128,542.91-378,122.50

Finding the Fourth Proportional to 752,361.94, 1,128,542.91 and 378,122.50

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Solution

The fourth proportional to 752,361.94, 1,128,542.91 and 378,122.50 is: 567,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,361.94 : 1,128,542.91 = 378,122.50 : x
  2. Step 2: Convert to fraction form
    752,361.94/1,128,542.91 = 378,122.50/x
  3. Step 3: Cross multiply
    752,361.94x = 1,128,542.91 × 378,122.50
  4. Step 4: Simplify right side
    752,361.94x = 426,727,466,486.48
  5. Step 5: Solve for x
    x = 426,727,466,486.48/752,361.94
  6. Step 6: Final answer
    x = 567,183.75

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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.