Home / 1,309,287.36-1,798,986.48-1,040,548.80

Finding the Fourth Proportional to 1,309,287.36, 1,798,986.48 and 1,040,548.80

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Solution

The fourth proportional to 1,309,287.36, 1,798,986.48 and 1,040,548.80 is: 1,429,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,287.36 : 1,798,986.48 = 1,040,548.80 : x
  2. Step 2: Convert to fraction form
    1,309,287.36/1,798,986.48 = 1,040,548.80/x
  3. Step 3: Cross multiply
    1,309,287.36x = 1,798,986.48 × 1,040,548.80
  4. Step 4: Simplify right side
    1,309,287.36x = 1,871,933,222,980.22
  5. Step 5: Solve for x
    x = 1,871,933,222,980.22/1,309,287.36
  6. Step 6: Final answer
    x = 1,429,734.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.