Home / 996,987.60-1,493,375.40-660,189.60

Finding the Fourth Proportional to 996,987.60, 1,493,375.40 and 660,189.60

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Solution

The fourth proportional to 996,987.60, 1,493,375.40 and 660,189.60 is: 988,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,987.60 : 1,493,375.40 = 660,189.60 : x
  2. Step 2: Convert to fraction form
    996,987.60/1,493,375.40 = 660,189.60/x
  3. Step 3: Cross multiply
    996,987.60x = 1,493,375.40 × 660,189.60
  4. Step 4: Simplify right side
    996,987.60x = 985,910,907,975.84
  5. Step 5: Solve for x
    x = 985,910,907,975.84/996,987.60
  6. Step 6: Final answer
    x = 988,889.84

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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.