Home / 1,219,771.70-1,829,747.42-321,207.22

Finding the Fourth Proportional to 1,219,771.70, 1,829,747.42 and 321,207.22

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Solution

The fourth proportional to 1,219,771.70, 1,829,747.42 and 321,207.22 is: 481,834.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,771.70 : 1,829,747.42 = 321,207.22 : x
  2. Step 2: Convert to fraction form
    1,219,771.70/1,829,747.42 = 321,207.22/x
  3. Step 3: Cross multiply
    1,219,771.70x = 1,829,747.42 × 321,207.22
  4. Step 4: Simplify right side
    1,219,771.70x = 587,728,082,080.37
  5. Step 5: Solve for x
    x = 587,728,082,080.37/1,219,771.70
  6. Step 6: Final answer
    x = 481,834.50

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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.