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Finding the Fourth Proportional to 1,089,867, 1,635,063 and 341,913

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Solution

The fourth proportional to 1,089,867, 1,635,063 and 341,913 is: 512,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,867 : 1,635,063 = 341,913 : x
  2. Step 2: Convert to fraction form
    1,089,867/1,635,063 = 341,913/x
  3. Step 3: Cross multiply
    1,089,867x = 1,635,063 × 341,913
  4. Step 4: Simplify right side
    1,089,867x = 559,049,295,519
  5. Step 5: Solve for x
    x = 559,049,295,519/1,089,867
  6. Step 6: Final answer
    x = 512,951.85

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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.