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Finding the Fourth Proportional to 392,018.76, 541,290.61 and 301,231.62

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Solution

The fourth proportional to 392,018.76, 541,290.61 and 301,231.62 is: 415,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,018.76 : 541,290.61 = 301,231.62 : x
  2. Step 2: Convert to fraction form
    392,018.76/541,290.61 = 301,231.62/x
  3. Step 3: Cross multiply
    392,018.76x = 541,290.61 × 301,231.62
  4. Step 4: Simplify right side
    392,018.76x = 163,053,843,881.56
  5. Step 5: Solve for x
    x = 163,053,843,881.56/392,018.76
  6. Step 6: Final answer
    x = 415,933.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.