Home / 639,174.84-882,035.49-352,691.20

Finding the Fourth Proportional to 639,174.84, 882,035.49 and 352,691.20

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Solution

The fourth proportional to 639,174.84, 882,035.49 and 352,691.20 is: 486,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,174.84 : 882,035.49 = 352,691.20 : x
  2. Step 2: Convert to fraction form
    639,174.84/882,035.49 = 352,691.20/x
  3. Step 3: Cross multiply
    639,174.84x = 882,035.49 × 352,691.20
  4. Step 4: Simplify right side
    639,174.84x = 311,086,155,410.69
  5. Step 5: Solve for x
    x = 311,086,155,410.69/639,174.84
  6. Step 6: Final answer
    x = 486,699.63

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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.