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Finding the Fourth Proportional to 526,478.43, 726,540.39 and 297,084.36

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Solution

The fourth proportional to 526,478.43, 726,540.39 and 297,084.36 is: 409,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,478.43 : 726,540.39 = 297,084.36 : x
  2. Step 2: Convert to fraction form
    526,478.43/726,540.39 = 297,084.36/x
  3. Step 3: Cross multiply
    526,478.43x = 726,540.39 × 297,084.36
  4. Step 4: Simplify right side
    526,478.43x = 215,843,786,777.30
  5. Step 5: Solve for x
    x = 215,843,786,777.30/526,478.43
  6. Step 6: Final answer
    x = 409,976.51

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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.