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Finding the Fourth Proportional to 499,716.97, 689,607.37 and 270,274.52

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Solution

The fourth proportional to 499,716.97, 689,607.37 and 270,274.52 is: 372,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,716.97 : 689,607.37 = 270,274.52 : x
  2. Step 2: Convert to fraction form
    499,716.97/689,607.37 = 270,274.52/x
  3. Step 3: Cross multiply
    499,716.97x = 689,607.37 × 270,274.52
  4. Step 4: Simplify right side
    499,716.97x = 186,383,302,977.07
  5. Step 5: Solve for x
    x = 186,383,302,977.07/499,716.97
  6. Step 6: Final answer
    x = 372,977.73

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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.