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Finding the Fourth Proportional to 616,578.53, 850,878.05 and 361,929.69

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Solution

The fourth proportional to 616,578.53, 850,878.05 and 361,929.69 is: 499,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,578.53 : 850,878.05 = 361,929.69 : x
  2. Step 2: Convert to fraction form
    616,578.53/850,878.05 = 361,929.69/x
  3. Step 3: Cross multiply
    616,578.53x = 850,878.05 × 361,929.69
  4. Step 4: Simplify right side
    616,578.53x = 307,958,027,054.66
  5. Step 5: Solve for x
    x = 307,958,027,054.66/616,578.53
  6. Step 6: Final answer
    x = 499,462.78

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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.