Home / 801,121.42-1,105,550.60-438,579.01

Finding the Fourth Proportional to 801,121.42, 1,105,550.60 and 438,579.01

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Solution

The fourth proportional to 801,121.42, 1,105,550.60 and 438,579.01 is: 605,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,121.42 : 1,105,550.60 = 438,579.01 : x
  2. Step 2: Convert to fraction form
    801,121.42/1,105,550.60 = 438,579.01/x
  3. Step 3: Cross multiply
    801,121.42x = 1,105,550.60 × 438,579.01
  4. Step 4: Simplify right side
    801,121.42x = 484,871,279,932.26
  5. Step 5: Solve for x
    x = 484,871,279,932.26/801,121.42
  6. Step 6: Final answer
    x = 605,240.69

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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.