Home / 800,475.75-1,198,789.34-457,880.81

Finding the Fourth Proportional to 800,475.75, 1,198,789.34 and 457,880.81

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Solution

The fourth proportional to 800,475.75, 1,198,789.34 and 457,880.81 is: 685,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,475.75 : 1,198,789.34 = 457,880.81 : x
  2. Step 2: Convert to fraction form
    800,475.75/1,198,789.34 = 457,880.81/x
  3. Step 3: Cross multiply
    800,475.75x = 1,198,789.34 × 457,880.81
  4. Step 4: Simplify right side
    800,475.75x = 548,902,625,735.22
  5. Step 5: Solve for x
    x = 548,902,625,735.22/800,475.75
  6. Step 6: Final answer
    x = 685,720.49

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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.