Home / 3,120,100.40-4,680,604.20-1,322,980.40

Finding the Fourth Proportional to 3,120,100.40, 4,680,604.20 and 1,322,980.40

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Solution

The fourth proportional to 3,120,100.40, 4,680,604.20 and 1,322,980.40 is: 1,984,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,100.40 : 4,680,604.20 = 1,322,980.40 : x
  2. Step 2: Convert to fraction form
    3,120,100.40/4,680,604.20 = 1,322,980.40/x
  3. Step 3: Cross multiply
    3,120,100.40x = 4,680,604.20 × 1,322,980.40
  4. Step 4: Simplify right side
    3,120,100.40x = 6,192,347,616,757.68
  5. Step 5: Solve for x
    x = 6,192,347,616,757.68/3,120,100.40
  6. Step 6: Final answer
    x = 1,984,662.93

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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.