Home / 1,219,254.51-1,821,466.09-789,287.57

Finding the Fourth Proportional to 1,219,254.51, 1,821,466.09 and 789,287.57

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Solution

The fourth proportional to 1,219,254.51, 1,821,466.09 and 789,287.57 is: 1,179,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,254.51 : 1,821,466.09 = 789,287.57 : x
  2. Step 2: Convert to fraction form
    1,219,254.51/1,821,466.09 = 789,287.57/x
  3. Step 3: Cross multiply
    1,219,254.51x = 1,821,466.09 × 789,287.57
  4. Step 4: Simplify right side
    1,219,254.51x = 1,437,660,555,188.90
  5. Step 5: Solve for x
    x = 1,437,660,555,188.90/1,219,254.51
  6. Step 6: Final answer
    x = 1,179,130.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.