Home / 2,105,289-2,905,122.24-1,245,698.64

Finding the Fourth Proportional to 2,105,289, 2,905,122.24 and 1,245,698.64

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Solution

The fourth proportional to 2,105,289, 2,905,122.24 and 1,245,698.64 is: 1,718,959.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,289 : 2,905,122.24 = 1,245,698.64 : x
  2. Step 2: Convert to fraction form
    2,105,289/2,905,122.24 = 1,245,698.64/x
  3. Step 3: Cross multiply
    2,105,289x = 2,905,122.24 × 1,245,698.64
  4. Step 4: Simplify right side
    2,105,289x = 3,618,906,823,401.75
  5. Step 5: Solve for x
    x = 3,618,906,823,401.75/2,105,289
  6. Step 6: Final answer
    x = 1,718,959.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.