Home / 535,485.87-738,923.43-305,997.61

Finding the Fourth Proportional to 535,485.87, 738,923.43 and 305,997.61

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Solution

The fourth proportional to 535,485.87, 738,923.43 and 305,997.61 is: 422,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,485.87 : 738,923.43 = 305,997.61 : x
  2. Step 2: Convert to fraction form
    535,485.87/738,923.43 = 305,997.61/x
  3. Step 3: Cross multiply
    535,485.87x = 738,923.43 × 305,997.61
  4. Step 4: Simplify right side
    535,485.87x = 226,108,803,553.00
  5. Step 5: Solve for x
    x = 226,108,803,553.00/535,485.87
  6. Step 6: Final answer
    x = 422,249.80

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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.