Home / 1,297,387.08-1,790,206.38-787,991.04

Finding the Fourth Proportional to 1,297,387.08, 1,790,206.38 and 787,991.04

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Solution

The fourth proportional to 1,297,387.08, 1,790,206.38 and 787,991.04 is: 1,087,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,387.08 : 1,790,206.38 = 787,991.04 : x
  2. Step 2: Convert to fraction form
    1,297,387.08/1,790,206.38 = 787,991.04/x
  3. Step 3: Cross multiply
    1,297,387.08x = 1,790,206.38 × 787,991.04
  4. Step 4: Simplify right side
    1,297,387.08x = 1,410,666,587,190.84
  5. Step 5: Solve for x
    x = 1,410,666,587,190.84/1,297,387.08
  6. Step 6: Final answer
    x = 1,087,313.58

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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.