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Finding the Fourth Proportional to 424,185.78, 585,181.31 and 375,836.68

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Solution

The fourth proportional to 424,185.78, 585,181.31 and 375,836.68 is: 518,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,185.78 : 585,181.31 = 375,836.68 : x
  2. Step 2: Convert to fraction form
    424,185.78/585,181.31 = 375,836.68/x
  3. Step 3: Cross multiply
    424,185.78x = 585,181.31 × 375,836.68
  4. Step 4: Simplify right side
    424,185.78x = 219,932,600,748.45
  5. Step 5: Solve for x
    x = 219,932,600,748.45/424,185.78
  6. Step 6: Final answer
    x = 518,481.79

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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.