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Finding the Fourth Proportional to 499,878, 689,840.28 and 273,527.28

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Solution

The fourth proportional to 499,878, 689,840.28 and 273,527.28 is: 377,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,878 : 689,840.28 = 273,527.28 : x
  2. Step 2: Convert to fraction form
    499,878/689,840.28 = 273,527.28/x
  3. Step 3: Cross multiply
    499,878x = 689,840.28 × 273,527.28
  4. Step 4: Simplify right side
    499,878x = 188,690,135,422.84
  5. Step 5: Solve for x
    x = 188,690,135,422.84/499,878
  6. Step 6: Final answer
    x = 377,472.37

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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.