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Finding the Fourth Proportional to 499,843.52, 689,781.99 and 270,400.27

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Solution

The fourth proportional to 499,843.52, 689,781.99 and 270,400.27 is: 373,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,843.52 : 689,781.99 = 270,400.27 : x
  2. Step 2: Convert to fraction form
    499,843.52/689,781.99 = 270,400.27/x
  3. Step 3: Cross multiply
    499,843.52x = 689,781.99 × 270,400.27
  4. Step 4: Simplify right side
    499,843.52x = 186,517,236,337.14
  5. Step 5: Solve for x
    x = 186,517,236,337.14/499,843.52
  6. Step 6: Final answer
    x = 373,151.25

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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.