Home / 800,314.43-1,200,229.25-421,025.99

Finding the Fourth Proportional to 800,314.43, 1,200,229.25 and 421,025.99

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Solution

The fourth proportional to 800,314.43, 1,200,229.25 and 421,025.99 is: 631,411.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,314.43 : 1,200,229.25 = 421,025.99 : x
  2. Step 2: Convert to fraction form
    800,314.43/1,200,229.25 = 421,025.99/x
  3. Step 3: Cross multiply
    800,314.43x = 1,200,229.25 × 421,025.99
  4. Step 4: Simplify right side
    800,314.43x = 505,327,700,101.93
  5. Step 5: Solve for x
    x = 505,327,700,101.93/800,314.43
  6. Step 6: Final answer
    x = 631,411.46

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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.