Home / 1,512,279.20-2,268,418.80-1,396,805.60

Finding the Fourth Proportional to 1,512,279.20, 2,268,418.80 and 1,396,805.60

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Solution

The fourth proportional to 1,512,279.20, 2,268,418.80 and 1,396,805.60 is: 2,095,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,279.20 : 2,268,418.80 = 1,396,805.60 : x
  2. Step 2: Convert to fraction form
    1,512,279.20/2,268,418.80 = 1,396,805.60/x
  3. Step 3: Cross multiply
    1,512,279.20x = 2,268,418.80 × 1,396,805.60
  4. Step 4: Simplify right side
    1,512,279.20x = 3,168,540,082,985.28
  5. Step 5: Solve for x
    x = 3,168,540,082,985.28/1,512,279.20
  6. Step 6: Final answer
    x = 2,095,208.40

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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.