Home / 494,507.27-682,507.40-290,558.15

Finding the Fourth Proportional to 494,507.27, 682,507.40 and 290,558.15

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Solution

The fourth proportional to 494,507.27, 682,507.40 and 290,558.15 is: 401,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,507.27 : 682,507.40 = 290,558.15 : x
  2. Step 2: Convert to fraction form
    494,507.27/682,507.40 = 290,558.15/x
  3. Step 3: Cross multiply
    494,507.27x = 682,507.40 × 290,558.15
  4. Step 4: Simplify right side
    494,507.27x = 198,308,087,505.31
  5. Step 5: Solve for x
    x = 198,308,087,505.31/494,507.27
  6. Step 6: Final answer
    x = 401,021.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.