Home / 1,296,268.80-1,944,403.20-821,414.40

Finding the Fourth Proportional to 1,296,268.80, 1,944,403.20 and 821,414.40

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Solution

The fourth proportional to 1,296,268.80, 1,944,403.20 and 821,414.40 is: 1,232,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,268.80 : 1,944,403.20 = 821,414.40 : x
  2. Step 2: Convert to fraction form
    1,296,268.80/1,944,403.20 = 821,414.40/x
  3. Step 3: Cross multiply
    1,296,268.80x = 1,944,403.20 × 821,414.40
  4. Step 4: Simplify right side
    1,296,268.80x = 1,597,160,787,886.08
  5. Step 5: Solve for x
    x = 1,597,160,787,886.08/1,296,268.80
  6. Step 6: Final answer
    x = 1,232,121.60

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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.