Home / 1,300,878.56-1,951,317.80-857,542.88

Finding the Fourth Proportional to 1,300,878.56, 1,951,317.80 and 857,542.88

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Solution

The fourth proportional to 1,300,878.56, 1,951,317.80 and 857,542.88 is: 1,286,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,878.56 : 1,951,317.80 = 857,542.88 : x
  2. Step 2: Convert to fraction form
    1,300,878.56/1,951,317.80 = 857,542.88/x
  3. Step 3: Cross multiply
    1,300,878.56x = 1,951,317.80 × 857,542.88
  4. Step 4: Simplify right side
    1,300,878.56x = 1,673,338,686,007.26
  5. Step 5: Solve for x
    x = 1,673,338,686,007.26/1,300,878.56
  6. Step 6: Final answer
    x = 1,286,314.29

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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.