Home / 427,846.20-641,561.44-214,522.44

Finding the Fourth Proportional to 427,846.20, 641,561.44 and 214,522.44

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Solution

The fourth proportional to 427,846.20, 641,561.44 and 214,522.44 is: 321,679.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,846.20 : 641,561.44 = 214,522.44 : x
  2. Step 2: Convert to fraction form
    427,846.20/641,561.44 = 214,522.44/x
  3. Step 3: Cross multiply
    427,846.20x = 641,561.44 × 214,522.44
  4. Step 4: Simplify right side
    427,846.20x = 137,629,325,518.71
  5. Step 5: Solve for x
    x = 137,629,325,518.71/427,846.20
  6. Step 6: Final answer
    x = 321,679.44

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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.