Home / 639,214.65-882,134.82-352,753.29

Finding the Fourth Proportional to 639,214.65, 882,134.82 and 352,753.29

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Solution

The fourth proportional to 639,214.65, 882,134.82 and 352,753.29 is: 486,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,214.65 : 882,134.82 = 352,753.29 : x
  2. Step 2: Convert to fraction form
    639,214.65/882,134.82 = 352,753.29/x
  3. Step 3: Cross multiply
    639,214.65x = 882,134.82 × 352,753.29
  4. Step 4: Simplify right side
    639,214.65x = 311,175,959,978.56
  5. Step 5: Solve for x
    x = 311,175,959,978.56/639,214.65
  6. Step 6: Final answer
    x = 486,809.81

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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.