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Finding the Fourth Proportional to 639,262.58, 882,164.86 and 352,761.93

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Solution

The fourth proportional to 639,262.58, 882,164.86 and 352,761.93 is: 486,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,262.58 : 882,164.86 = 352,761.93 : x
  2. Step 2: Convert to fraction form
    639,262.58/882,164.86 = 352,761.93/x
  3. Step 3: Cross multiply
    639,262.58x = 882,164.86 × 352,761.93
  4. Step 4: Simplify right side
    639,262.58x = 311,194,177,709.88
  5. Step 5: Solve for x
    x = 311,194,177,709.88/639,262.58
  6. Step 6: Final answer
    x = 486,801.81

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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.