Home / 1,272,857.36-1,756,606.21-789,578.22

Finding the Fourth Proportional to 1,272,857.36, 1,756,606.21 and 789,578.22

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Solution

The fourth proportional to 1,272,857.36, 1,756,606.21 and 789,578.22 is: 1,089,657.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,857.36 : 1,756,606.21 = 789,578.22 : x
  2. Step 2: Convert to fraction form
    1,272,857.36/1,756,606.21 = 789,578.22/x
  3. Step 3: Cross multiply
    1,272,857.36x = 1,756,606.21 × 789,578.22
  4. Step 4: Simplify right side
    1,272,857.36x = 1,386,978,004,532.75
  5. Step 5: Solve for x
    x = 1,386,978,004,532.75/1,272,857.36
  6. Step 6: Final answer
    x = 1,089,657.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.