Home / 1,261,915.21-1,889,855.20-727,817.01

Finding the Fourth Proportional to 1,261,915.21, 1,889,855.20 and 727,817.01

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Solution

The fourth proportional to 1,261,915.21, 1,889,855.20 and 727,817.01 is: 1,089,985.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,915.21 : 1,889,855.20 = 727,817.01 : x
  2. Step 2: Convert to fraction form
    1,261,915.21/1,889,855.20 = 727,817.01/x
  3. Step 3: Cross multiply
    1,261,915.21x = 1,889,855.20 × 727,817.01
  4. Step 4: Simplify right side
    1,261,915.21x = 1,375,468,760,996.95
  5. Step 5: Solve for x
    x = 1,375,468,760,996.95/1,261,915.21
  6. Step 6: Final answer
    x = 1,089,985.09

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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.