Home / 1,279,685-1,765,965.30-743,175.56

Finding the Fourth Proportional to 1,279,685, 1,765,965.30 and 743,175.56

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Solution

The fourth proportional to 1,279,685, 1,765,965.30 and 743,175.56 is: 1,025,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,685 : 1,765,965.30 = 743,175.56 : x
  2. Step 2: Convert to fraction form
    1,279,685/1,765,965.30 = 743,175.56/x
  3. Step 3: Cross multiply
    1,279,685x = 1,765,965.30 × 743,175.56
  4. Step 4: Simplify right side
    1,279,685x = 1,312,422,250,768.07
  5. Step 5: Solve for x
    x = 1,312,422,250,768.07/1,279,685
  6. Step 6: Final answer
    x = 1,025,582.27

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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.