Home / 1,309,804.96-1,806,869.21-765,585.20

Finding the Fourth Proportional to 1,309,804.96, 1,806,869.21 and 765,585.20

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Solution

The fourth proportional to 1,309,804.96, 1,806,869.21 and 765,585.20 is: 1,056,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,804.96 : 1,806,869.21 = 765,585.20 : x
  2. Step 2: Convert to fraction form
    1,309,804.96/1,806,869.21 = 765,585.20/x
  3. Step 3: Cross multiply
    1,309,804.96x = 1,806,869.21 × 765,585.20
  4. Step 4: Simplify right side
    1,309,804.96x = 1,383,312,325,511.69
  5. Step 5: Solve for x
    x = 1,383,312,325,511.69/1,309,804.96
  6. Step 6: Final answer
    x = 1,056,120.85

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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.