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Finding the Fourth Proportional to 577,137.61, 796,435.99 and 315,481.28

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Solution

The fourth proportional to 577,137.61, 796,435.99 and 315,481.28 is: 435,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,137.61 : 796,435.99 = 315,481.28 : x
  2. Step 2: Convert to fraction form
    577,137.61/796,435.99 = 315,481.28/x
  3. Step 3: Cross multiply
    577,137.61x = 796,435.99 × 315,481.28
  4. Step 4: Simplify right side
    577,137.61x = 251,260,647,046.92
  5. Step 5: Solve for x
    x = 251,260,647,046.92/577,137.61
  6. Step 6: Final answer
    x = 435,356.57

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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.