Home / 639,239.58-882,142.92-352,753.38

Finding the Fourth Proportional to 639,239.58, 882,142.92 and 352,753.38

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Solution

The fourth proportional to 639,239.58, 882,142.92 and 352,753.38 is: 486,795.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,239.58 : 882,142.92 = 352,753.38 : x
  2. Step 2: Convert to fraction form
    639,239.58/882,142.92 = 352,753.38/x
  3. Step 3: Cross multiply
    639,239.58x = 882,142.92 × 352,753.38
  4. Step 4: Simplify right side
    639,239.58x = 311,178,896,673.07
  5. Step 5: Solve for x
    x = 311,178,896,673.07/639,239.58
  6. Step 6: Final answer
    x = 486,795.42

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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.