Home / 389,056.80-582,644.70-322,003.38

Finding the Fourth Proportional to 389,056.80, 582,644.70 and 322,003.38

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Solution

The fourth proportional to 389,056.80, 582,644.70 and 322,003.38 is: 482,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,056.80 : 582,644.70 = 322,003.38 : x
  2. Step 2: Convert to fraction form
    389,056.80/582,644.70 = 322,003.38/x
  3. Step 3: Cross multiply
    389,056.80x = 582,644.70 × 322,003.38
  4. Step 4: Simplify right side
    389,056.80x = 187,613,562,739.09
  5. Step 5: Solve for x
    x = 187,613,562,739.09/389,056.80
  6. Step 6: Final answer
    x = 482,226.66

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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.