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Finding the Fourth Proportional to 468,352.74, 646,342.43 and 287,029.62

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Solution

The fourth proportional to 468,352.74, 646,342.43 and 287,029.62 is: 396,110.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,352.74 : 646,342.43 = 287,029.62 : x
  2. Step 2: Convert to fraction form
    468,352.74/646,342.43 = 287,029.62/x
  3. Step 3: Cross multiply
    468,352.74x = 646,342.43 × 287,029.62
  4. Step 4: Simplify right side
    468,352.74x = 185,519,422,072.78
  5. Step 5: Solve for x
    x = 185,519,422,072.78/468,352.74
  6. Step 6: Final answer
    x = 396,110.47

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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.