Home / 481,363.20-722,307.12-215,112.96

Finding the Fourth Proportional to 481,363.20, 722,307.12 and 215,112.96

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Solution

The fourth proportional to 481,363.20, 722,307.12 and 215,112.96 is: 322,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,363.20 : 722,307.12 = 215,112.96 : x
  2. Step 2: Convert to fraction form
    481,363.20/722,307.12 = 215,112.96/x
  3. Step 3: Cross multiply
    481,363.20x = 722,307.12 × 215,112.96
  4. Step 4: Simplify right side
    481,363.20x = 155,377,622,612.28
  5. Step 5: Solve for x
    x = 155,377,622,612.28/481,363.20
  6. Step 6: Final answer
    x = 322,786.67

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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.