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Finding the Fourth Proportional to 538,755.50, 808,441.41 and 272,537.66

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Solution

The fourth proportional to 538,755.50, 808,441.41 and 272,537.66 is: 408,962.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,755.50 : 808,441.41 = 272,537.66 : x
  2. Step 2: Convert to fraction form
    538,755.50/808,441.41 = 272,537.66/x
  3. Step 3: Cross multiply
    538,755.50x = 808,441.41 × 272,537.66
  4. Step 4: Simplify right side
    538,755.50x = 220,330,730,128.50
  5. Step 5: Solve for x
    x = 220,330,730,128.50/538,755.50
  6. Step 6: Final answer
    x = 408,962.38

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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.