Home / 2,043,634.80-3,065,452.20-978,128.40

Finding the Fourth Proportional to 2,043,634.80, 3,065,452.20 and 978,128.40

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Solution

The fourth proportional to 2,043,634.80, 3,065,452.20 and 978,128.40 is: 1,467,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043,634.80 : 3,065,452.20 = 978,128.40 : x
  2. Step 2: Convert to fraction form
    2,043,634.80/3,065,452.20 = 978,128.40/x
  3. Step 3: Cross multiply
    2,043,634.80x = 3,065,452.20 × 978,128.40
  4. Step 4: Simplify right side
    2,043,634.80x = 2,998,405,855,662.48
  5. Step 5: Solve for x
    x = 2,998,405,855,662.48/2,043,634.80
  6. Step 6: Final answer
    x = 1,467,192.60

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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.