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Finding the Fourth Proportional to 507,976.11, 701,008.02 and 281,621.61

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Solution

The fourth proportional to 507,976.11, 701,008.02 and 281,621.61 is: 388,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,976.11 : 701,008.02 = 281,621.61 : x
  2. Step 2: Convert to fraction form
    507,976.11/701,008.02 = 281,621.61/x
  3. Step 3: Cross multiply
    507,976.11x = 701,008.02 × 281,621.61
  4. Step 4: Simplify right side
    507,976.11x = 197,419,007,215.31
  5. Step 5: Solve for x
    x = 197,419,007,215.31/507,976.11
  6. Step 6: Final answer
    x = 388,638.37

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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.