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Finding the Fourth Proportional to 499,755.06, 689,661.27 and 273,400.56

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Solution

The fourth proportional to 499,755.06, 689,661.27 and 273,400.56 is: 377,292.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,755.06 : 689,661.27 = 273,400.56 : x
  2. Step 2: Convert to fraction form
    499,755.06/689,661.27 = 273,400.56/x
  3. Step 3: Cross multiply
    499,755.06x = 689,661.27 × 273,400.56
  4. Step 4: Simplify right side
    499,755.06x = 188,553,777,428.31
  5. Step 5: Solve for x
    x = 188,553,777,428.31/499,755.06
  6. Step 6: Final answer
    x = 377,292.38

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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.