Home / 3,379,449.45-5,069,130.42-820,685.37

Finding the Fourth Proportional to 3,379,449.45, 5,069,130.42 and 820,685.37

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Solution

The fourth proportional to 3,379,449.45, 5,069,130.42 and 820,685.37 is: 1,231,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379,449.45 : 5,069,130.42 = 820,685.37 : x
  2. Step 2: Convert to fraction form
    3,379,449.45/5,069,130.42 = 820,685.37/x
  3. Step 3: Cross multiply
    3,379,449.45x = 5,069,130.42 × 820,685.37
  4. Step 4: Simplify right side
    3,379,449.45x = 4,160,161,174,315.96
  5. Step 5: Solve for x
    x = 4,160,161,174,315.96/3,379,449.45
  6. Step 6: Final answer
    x = 1,231,017.43

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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.