Home / 1,022,879.72-1,410,915.30-678,708.20

Finding the Fourth Proportional to 1,022,879.72, 1,410,915.30 and 678,708.20

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Solution

The fourth proportional to 1,022,879.72, 1,410,915.30 and 678,708.20 is: 936,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,879.72 : 1,410,915.30 = 678,708.20 : x
  2. Step 2: Convert to fraction form
    1,022,879.72/1,410,915.30 = 678,708.20/x
  3. Step 3: Cross multiply
    1,022,879.72x = 1,410,915.30 × 678,708.20
  4. Step 4: Simplify right side
    1,022,879.72x = 957,599,783,615.46
  5. Step 5: Solve for x
    x = 957,599,783,615.46/1,022,879.72
  6. Step 6: Final answer
    x = 936,180.24

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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.