Home / 1,432,183.32-1,976,463.72-787,653.36

Finding the Fourth Proportional to 1,432,183.32, 1,976,463.72 and 787,653.36

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Solution

The fourth proportional to 1,432,183.32, 1,976,463.72 and 787,653.36 is: 1,086,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,183.32 : 1,976,463.72 = 787,653.36 : x
  2. Step 2: Convert to fraction form
    1,432,183.32/1,976,463.72 = 787,653.36/x
  3. Step 3: Cross multiply
    1,432,183.32x = 1,976,463.72 × 787,653.36
  4. Step 4: Simplify right side
    1,432,183.32x = 1,556,768,289,976.10
  5. Step 5: Solve for x
    x = 1,556,768,289,976.10/1,432,183.32
  6. Step 6: Final answer
    x = 1,086,989.54

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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.