Home / 1,329,940.80-1,994,911.20-1,201,377.60

Finding the Fourth Proportional to 1,329,940.80, 1,994,911.20 and 1,201,377.60

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Solution

The fourth proportional to 1,329,940.80, 1,994,911.20 and 1,201,377.60 is: 1,802,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,940.80 : 1,994,911.20 = 1,201,377.60 : x
  2. Step 2: Convert to fraction form
    1,329,940.80/1,994,911.20 = 1,201,377.60/x
  3. Step 3: Cross multiply
    1,329,940.80x = 1,994,911.20 × 1,201,377.60
  4. Step 4: Simplify right side
    1,329,940.80x = 2,396,641,629,669.12
  5. Step 5: Solve for x
    x = 2,396,641,629,669.12/1,329,940.80
  6. Step 6: Final answer
    x = 1,802,066.40

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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.