Home / 1,647,018.72-2,469,526.84-686,313.36

Finding the Fourth Proportional to 1,647,018.72, 2,469,526.84 and 686,313.36

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Solution

The fourth proportional to 1,647,018.72, 2,469,526.84 and 686,313.36 is: 1,029,052.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,018.72 : 2,469,526.84 = 686,313.36 : x
  2. Step 2: Convert to fraction form
    1,647,018.72/2,469,526.84 = 686,313.36/x
  3. Step 3: Cross multiply
    1,647,018.72x = 2,469,526.84 × 686,313.36
  4. Step 4: Simplify right side
    1,647,018.72x = 1,694,869,263,170.58
  5. Step 5: Solve for x
    x = 1,694,869,263,170.58/1,647,018.72
  6. Step 6: Final answer
    x = 1,029,052.82

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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.