Home / 1,261,914.76-1,889,854.54-727,816.56

Finding the Fourth Proportional to 1,261,914.76, 1,889,854.54 and 727,816.56

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Solution

The fourth proportional to 1,261,914.76, 1,889,854.54 and 727,816.56 is: 1,089,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,914.76 : 1,889,854.54 = 727,816.56 : x
  2. Step 2: Convert to fraction form
    1,261,914.76/1,889,854.54 = 727,816.56/x
  3. Step 3: Cross multiply
    1,261,914.76x = 1,889,854.54 × 727,816.56
  4. Step 4: Simplify right side
    1,261,914.76x = 1,375,467,421,296.69
  5. Step 5: Solve for x
    x = 1,375,467,421,296.69/1,261,914.76
  6. Step 6: Final answer
    x = 1,089,984.41

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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.