Home / 1,899,801.72-2,621,730.21-1,028,645.91

Finding the Fourth Proportional to 1,899,801.72, 2,621,730.21 and 1,028,645.91

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Solution

The fourth proportional to 1,899,801.72, 2,621,730.21 and 1,028,645.91 is: 1,419,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,801.72 : 2,621,730.21 = 1,028,645.91 : x
  2. Step 2: Convert to fraction form
    1,899,801.72/2,621,730.21 = 1,028,645.91/x
  3. Step 3: Cross multiply
    1,899,801.72x = 2,621,730.21 × 1,028,645.91
  4. Step 4: Simplify right side
    1,899,801.72x = 2,696,832,057,639.94
  5. Step 5: Solve for x
    x = 2,696,832,057,639.94/1,899,801.72
  6. Step 6: Final answer
    x = 1,419,533.43

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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.