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Finding the Fourth Proportional to 504,183.69, 756,570.78 and 279,731.88

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Solution

The fourth proportional to 504,183.69, 756,570.78 and 279,731.88 is: 419,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,183.69 : 756,570.78 = 279,731.88 : x
  2. Step 2: Convert to fraction form
    504,183.69/756,570.78 = 279,731.88/x
  3. Step 3: Cross multiply
    504,183.69x = 756,570.78 × 279,731.88
  4. Step 4: Simplify right side
    504,183.69x = 211,636,966,642.47
  5. Step 5: Solve for x
    x = 211,636,966,642.47/504,183.69
  6. Step 6: Final answer
    x = 419,761.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.