Home / 3,379,458.70-5,069,144.31-820,694.62

Finding the Fourth Proportional to 3,379,458.70, 5,069,144.31 and 820,694.62

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Solution

The fourth proportional to 3,379,458.70, 5,069,144.31 and 820,694.62 is: 1,231,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379,458.70 : 5,069,144.31 = 820,694.62 : x
  2. Step 2: Convert to fraction form
    3,379,458.70/5,069,144.31 = 820,694.62/x
  3. Step 3: Cross multiply
    3,379,458.70x = 5,069,144.31 × 820,694.62
  4. Step 4: Simplify right side
    3,379,458.70x = 4,160,219,463,220.61
  5. Step 5: Solve for x
    x = 4,160,219,463,220.61/3,379,458.70
  6. Step 6: Final answer
    x = 1,231,031.31

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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.