Home / 821,170.01-1,231,788.95-281,797.03

Finding the Fourth Proportional to 821,170.01, 1,231,788.95 and 281,797.03

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Solution

The fourth proportional to 821,170.01, 1,231,788.95 and 281,797.03 is: 422,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,170.01 : 1,231,788.95 = 281,797.03 : x
  2. Step 2: Convert to fraction form
    821,170.01/1,231,788.95 = 281,797.03/x
  3. Step 3: Cross multiply
    821,170.01x = 1,231,788.95 × 281,797.03
  4. Step 4: Simplify right side
    821,170.01x = 347,114,470,469.42
  5. Step 5: Solve for x
    x = 347,114,470,469.42/821,170.01
  6. Step 6: Final answer
    x = 422,707.20

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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.