Home / 1,219,078.28-1,682,254.07-675,181.51

Finding the Fourth Proportional to 1,219,078.28, 1,682,254.07 and 675,181.51

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Solution

The fourth proportional to 1,219,078.28, 1,682,254.07 and 675,181.51 is: 931,709.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,078.28 : 1,682,254.07 = 675,181.51 : x
  2. Step 2: Convert to fraction form
    1,219,078.28/1,682,254.07 = 675,181.51/x
  3. Step 3: Cross multiply
    1,219,078.28x = 1,682,254.07 × 675,181.51
  4. Step 4: Simplify right side
    1,219,078.28x = 1,135,826,838,136.63
  5. Step 5: Solve for x
    x = 1,135,826,838,136.63/1,219,078.28
  6. Step 6: Final answer
    x = 931,709.52

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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.