Home / 681,490.40-1,022,235.60-676,824.80

Finding the Fourth Proportional to 681,490.40, 1,022,235.60 and 676,824.80

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Solution

The fourth proportional to 681,490.40, 1,022,235.60 and 676,824.80 is: 1,015,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,490.40 : 1,022,235.60 = 676,824.80 : x
  2. Step 2: Convert to fraction form
    681,490.40/1,022,235.60 = 676,824.80/x
  3. Step 3: Cross multiply
    681,490.40x = 1,022,235.60 × 676,824.80
  4. Step 4: Simplify right side
    681,490.40x = 691,874,405,522.88
  5. Step 5: Solve for x
    x = 691,874,405,522.88/681,490.40
  6. Step 6: Final answer
    x = 1,015,237.20

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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.