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Finding the Fourth Proportional to 503,539.79, 694,893.78 and 274,103.69

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Solution

The fourth proportional to 503,539.79, 694,893.78 and 274,103.69 is: 378,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,539.79 : 694,893.78 = 274,103.69 : x
  2. Step 2: Convert to fraction form
    503,539.79/694,893.78 = 274,103.69/x
  3. Step 3: Cross multiply
    503,539.79x = 694,893.78 × 274,103.69
  4. Step 4: Simplify right side
    503,539.79x = 190,472,945,781.58
  5. Step 5: Solve for x
    x = 190,472,945,781.58/503,539.79
  6. Step 6: Final answer
    x = 378,267.92

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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.