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Finding the Fourth Proportional to 500,571.54, 690,791.16 and 274,217.04

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Solution

The fourth proportional to 500,571.54, 690,791.16 and 274,217.04 is: 378,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,571.54 : 690,791.16 = 274,217.04 : x
  2. Step 2: Convert to fraction form
    500,571.54/690,791.16 = 274,217.04/x
  3. Step 3: Cross multiply
    500,571.54x = 690,791.16 × 274,217.04
  4. Step 4: Simplify right side
    500,571.54x = 189,426,707,153.37
  5. Step 5: Solve for x
    x = 189,426,707,153.37/500,571.54
  6. Step 6: Final answer
    x = 378,420.85

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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.