Home / 639,270.56-882,192.48-352,790.60

Finding the Fourth Proportional to 639,270.56, 882,192.48 and 352,790.60

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Solution

The fourth proportional to 639,270.56, 882,192.48 and 352,790.60 is: 486,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,270.56 : 882,192.48 = 352,790.60 : x
  2. Step 2: Convert to fraction form
    639,270.56/882,192.48 = 352,790.60/x
  3. Step 3: Cross multiply
    639,270.56x = 882,192.48 × 352,790.60
  4. Step 4: Simplify right side
    639,270.56x = 311,229,214,334.69
  5. Step 5: Solve for x
    x = 311,229,214,334.69/639,270.56
  6. Step 6: Final answer
    x = 486,850.54

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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.