Home / 1,325,961.09-1,989,531.72-694,727.28

Finding the Fourth Proportional to 1,325,961.09, 1,989,531.72 and 694,727.28

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Solution

The fourth proportional to 1,325,961.09, 1,989,531.72 and 694,727.28 is: 1,042,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,961.09 : 1,989,531.72 = 694,727.28 : x
  2. Step 2: Convert to fraction form
    1,325,961.09/1,989,531.72 = 694,727.28/x
  3. Step 3: Cross multiply
    1,325,961.09x = 1,989,531.72 × 694,727.28
  4. Step 4: Simplify right side
    1,325,961.09x = 1,382,181,960,309.32
  5. Step 5: Solve for x
    x = 1,382,181,960,309.32/1,325,961.09
  6. Step 6: Final answer
    x = 1,042,400.09

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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.