Home / 1,093,546.20-1,640,319.30-821,920.80

Finding the Fourth Proportional to 1,093,546.20, 1,640,319.30 and 821,920.80

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Solution

The fourth proportional to 1,093,546.20, 1,640,319.30 and 821,920.80 is: 1,232,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,546.20 : 1,640,319.30 = 821,920.80 : x
  2. Step 2: Convert to fraction form
    1,093,546.20/1,640,319.30 = 821,920.80/x
  3. Step 3: Cross multiply
    1,093,546.20x = 1,640,319.30 × 821,920.80
  4. Step 4: Simplify right side
    1,093,546.20x = 1,348,212,551,311.44
  5. Step 5: Solve for x
    x = 1,348,212,551,311.44/1,093,546.20
  6. Step 6: Final answer
    x = 1,232,881.20

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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.