Home / 639,243.27-882,173.69-352,781.43

Finding the Fourth Proportional to 639,243.27, 882,173.69 and 352,781.43

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Solution

The fourth proportional to 639,243.27, 882,173.69 and 352,781.43 is: 486,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,243.27 : 882,173.69 = 352,781.43 : x
  2. Step 2: Convert to fraction form
    639,243.27/882,173.69 = 352,781.43/x
  3. Step 3: Cross multiply
    639,243.27x = 882,173.69 × 352,781.43
  4. Step 4: Simplify right side
    639,243.27x = 311,214,494,102.67
  5. Step 5: Solve for x
    x = 311,214,494,102.67/639,243.27
  6. Step 6: Final answer
    x = 486,848.29

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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.