Home / 639,514.33-959,046.31-212,934.31

Finding the Fourth Proportional to 639,514.33, 959,046.31 and 212,934.31

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Solution

The fourth proportional to 639,514.33, 959,046.31 and 212,934.31 is: 319,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,514.33 : 959,046.31 = 212,934.31 : x
  2. Step 2: Convert to fraction form
    639,514.33/959,046.31 = 212,934.31/x
  3. Step 3: Cross multiply
    639,514.33x = 959,046.31 × 212,934.31
  4. Step 4: Simplify right side
    639,514.33x = 204,213,864,277.90
  5. Step 5: Solve for x
    x = 204,213,864,277.90/639,514.33
  6. Step 6: Final answer
    x = 319,326.49

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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.