Home / 463,272.81-639,286.83-259,289.43

Finding the Fourth Proportional to 463,272.81, 639,286.83 and 259,289.43

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Solution

The fourth proportional to 463,272.81, 639,286.83 and 259,289.43 is: 357,802.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,272.81 : 639,286.83 = 259,289.43 : x
  2. Step 2: Convert to fraction form
    463,272.81/639,286.83 = 259,289.43/x
  3. Step 3: Cross multiply
    463,272.81x = 639,286.83 × 259,289.43
  4. Step 4: Simplify right side
    463,272.81x = 165,760,317,757.21
  5. Step 5: Solve for x
    x = 165,760,317,757.21/463,272.81
  6. Step 6: Final answer
    x = 357,802.82

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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.