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Finding the Fourth Proportional to 503,433.78, 694,751.43 and 274,003.52

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Solution

The fourth proportional to 503,433.78, 694,751.43 and 274,003.52 is: 378,131.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,433.78 : 694,751.43 = 274,003.52 : x
  2. Step 2: Convert to fraction form
    503,433.78/694,751.43 = 274,003.52/x
  3. Step 3: Cross multiply
    503,433.78x = 694,751.43 × 274,003.52
  4. Step 4: Simplify right side
    503,433.78x = 190,364,333,871.28
  5. Step 5: Solve for x
    x = 190,364,333,871.28/503,433.78
  6. Step 6: Final answer
    x = 378,131.82

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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.