Home / 1,422,140.80-2,134,593.60-862,268.80

Finding the Fourth Proportional to 1,422,140.80, 2,134,593.60 and 862,268.80

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Solution

The fourth proportional to 1,422,140.80, 2,134,593.60 and 862,268.80 is: 1,294,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,140.80 : 2,134,593.60 = 862,268.80 : x
  2. Step 2: Convert to fraction form
    1,422,140.80/2,134,593.60 = 862,268.80/x
  3. Step 3: Cross multiply
    1,422,140.80x = 2,134,593.60 × 862,268.80
  4. Step 4: Simplify right side
    1,422,140.80x = 1,840,593,461,959.68
  5. Step 5: Solve for x
    x = 1,840,593,461,959.68/1,422,140.80
  6. Step 6: Final answer
    x = 1,294,241.37

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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.