Home / 1,093,776.40-1,640,664.60-978,630.86

Finding the Fourth Proportional to 1,093,776.40, 1,640,664.60 and 978,630.86

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Solution

The fourth proportional to 1,093,776.40, 1,640,664.60 and 978,630.86 is: 1,467,946.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,776.40 : 1,640,664.60 = 978,630.86 : x
  2. Step 2: Convert to fraction form
    1,093,776.40/1,640,664.60 = 978,630.86/x
  3. Step 3: Cross multiply
    1,093,776.40x = 1,640,664.60 × 978,630.86
  4. Step 4: Simplify right side
    1,093,776.40x = 1,605,605,008,469.56
  5. Step 5: Solve for x
    x = 1,605,605,008,469.56/1,093,776.40
  6. Step 6: Final answer
    x = 1,467,946.29

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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.