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Finding the Fourth Proportional to 538,755, 808,440.66 and 272,537.16

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Solution

The fourth proportional to 538,755, 808,440.66 and 272,537.16 is: 408,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,755 : 808,440.66 = 272,537.16 : x
  2. Step 2: Convert to fraction form
    538,755/808,440.66 = 272,537.16/x
  3. Step 3: Cross multiply
    538,755x = 808,440.66 × 272,537.16
  4. Step 4: Simplify right side
    538,755x = 220,330,121,504.93
  5. Step 5: Solve for x
    x = 220,330,121,504.93/538,755
  6. Step 6: Final answer
    x = 408,961.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.