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Finding the Fourth Proportional to 526,809.33, 726,996.83 and 285,091.90

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Solution

The fourth proportional to 526,809.33, 726,996.83 and 285,091.90 is: 393,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,809.33 : 726,996.83 = 285,091.90 : x
  2. Step 2: Convert to fraction form
    526,809.33/726,996.83 = 285,091.90/x
  3. Step 3: Cross multiply
    526,809.33x = 726,996.83 × 285,091.90
  4. Step 4: Simplify right side
    526,809.33x = 207,260,904,315.73
  5. Step 5: Solve for x
    x = 207,260,904,315.73/526,809.33
  6. Step 6: Final answer
    x = 393,426.79

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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.