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Finding the Fourth Proportional to 503,548.78, 694,911.84 and 274,120.93

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Solution

The fourth proportional to 503,548.78, 694,911.84 and 274,120.93 is: 378,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,548.78 : 694,911.84 = 274,120.93 : x
  2. Step 2: Convert to fraction form
    503,548.78/694,911.84 = 274,120.93/x
  3. Step 3: Cross multiply
    503,548.78x = 694,911.84 × 274,120.93
  4. Step 4: Simplify right side
    503,548.78x = 190,489,879,848.81
  5. Step 5: Solve for x
    x = 190,489,879,848.81/503,548.78
  6. Step 6: Final answer
    x = 378,294.79

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1.5x scale

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.