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Finding the Fourth Proportional to 627,997.80, 942,215.40 and 273,266.40

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Solution

The fourth proportional to 627,997.80, 942,215.40 and 273,266.40 is: 409,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,997.80 : 942,215.40 = 273,266.40 : x
  2. Step 2: Convert to fraction form
    627,997.80/942,215.40 = 273,266.40/x
  3. Step 3: Cross multiply
    627,997.80x = 942,215.40 × 273,266.40
  4. Step 4: Simplify right side
    627,997.80x = 257,475,810,382.56
  5. Step 5: Solve for x
    x = 257,475,810,382.56/627,997.80
  6. Step 6: Final answer
    x = 409,994.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.