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Finding the Fourth Proportional to 540,087.97, 810,640.43 and 274,039.42

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Solution

The fourth proportional to 540,087.97, 810,640.43 and 274,039.42 is: 411,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,087.97 : 810,640.43 = 274,039.42 : x
  2. Step 2: Convert to fraction form
    540,087.97/810,640.43 = 274,039.42/x
  3. Step 3: Cross multiply
    540,087.97x = 810,640.43 × 274,039.42
  4. Step 4: Simplify right side
    540,087.97x = 222,147,433,265.75
  5. Step 5: Solve for x
    x = 222,147,433,265.75/540,087.97
  6. Step 6: Final answer
    x = 411,317.13

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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.