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Finding the Fourth Proportional to 675,778.20, 932,481.60 and 403,788.68

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Solution

The fourth proportional to 675,778.20, 932,481.60 and 403,788.68 is: 557,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,778.20 : 932,481.60 = 403,788.68 : x
  2. Step 2: Convert to fraction form
    675,778.20/932,481.60 = 403,788.68/x
  3. Step 3: Cross multiply
    675,778.20x = 932,481.60 × 403,788.68
  4. Step 4: Simplify right side
    675,778.20x = 376,525,514,388.29
  5. Step 5: Solve for x
    x = 376,525,514,388.29/675,778.20
  6. Step 6: Final answer
    x = 557,173.22

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1.5x scale

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.