Home / 800,458.03-1,198,762.89-457,863.11

Finding the Fourth Proportional to 800,458.03, 1,198,762.89 and 457,863.11

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Solution

The fourth proportional to 800,458.03, 1,198,762.89 and 457,863.11 is: 685,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,458.03 : 1,198,762.89 = 457,863.11 : x
  2. Step 2: Convert to fraction form
    800,458.03/1,198,762.89 = 457,863.11/x
  3. Step 3: Cross multiply
    800,458.03x = 1,198,762.89 × 457,863.11
  4. Step 4: Simplify right side
    800,458.03x = 548,869,306,247.91
  5. Step 5: Solve for x
    x = 548,869,306,247.91/800,458.03
  6. Step 6: Final answer
    x = 685,694.05

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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.