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Finding the Fourth Proportional to 503,923.85, 695,415.87 and 274,480.43

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Solution

The fourth proportional to 503,923.85, 695,415.87 and 274,480.43 is: 378,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,923.85 : 695,415.87 = 274,480.43 : x
  2. Step 2: Convert to fraction form
    503,923.85/695,415.87 = 274,480.43/x
  3. Step 3: Cross multiply
    503,923.85x = 695,415.87 × 274,480.43
  4. Step 4: Simplify right side
    503,923.85x = 190,878,042,176.94
  5. Step 5: Solve for x
    x = 190,878,042,176.94/503,923.85
  6. Step 6: Final answer
    x = 378,783.51

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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.