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Finding the Fourth Proportional to 2,212,448, 3,318,672 and 636,512

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Solution

The fourth proportional to 2,212,448, 3,318,672 and 636,512 is: 954,768

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212,448 : 3,318,672 = 636,512 : x
  2. Step 2: Convert to fraction form
    2,212,448/3,318,672 = 636,512/x
  3. Step 3: Cross multiply
    2,212,448x = 3,318,672 × 636,512
  4. Step 4: Simplify right side
    2,212,448x = 2,112,374,552,064
  5. Step 5: Solve for x
    x = 2,112,374,552,064/2,212,448
  6. Step 6: Final answer
    x = 954,768

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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.