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Finding the Fourth Proportional to 2,151,108, 3,226,662 and 655,200

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Solution

The fourth proportional to 2,151,108, 3,226,662 and 655,200 is: 982,800

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151,108 : 3,226,662 = 655,200 : x
  2. Step 2: Convert to fraction form
    2,151,108/3,226,662 = 655,200/x
  3. Step 3: Cross multiply
    2,151,108x = 3,226,662 × 655,200
  4. Step 4: Simplify right side
    2,151,108x = 2,114,108,942,400
  5. Step 5: Solve for x
    x = 2,114,108,942,400/2,151,108
  6. Step 6: Final answer
    x = 982,800

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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.