Home / 2,288,627.20-3,432,940.80-1,280,857.60

Finding the Fourth Proportional to 2,288,627.20, 3,432,940.80 and 1,280,857.60

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Solution

The fourth proportional to 2,288,627.20, 3,432,940.80 and 1,280,857.60 is: 1,921,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288,627.20 : 3,432,940.80 = 1,280,857.60 : x
  2. Step 2: Convert to fraction form
    2,288,627.20/3,432,940.80 = 1,280,857.60/x
  3. Step 3: Cross multiply
    2,288,627.20x = 3,432,940.80 × 1,280,857.60
  4. Step 4: Simplify right side
    2,288,627.20x = 4,397,108,314,030.08
  5. Step 5: Solve for x
    x = 4,397,108,314,030.08/2,288,627.20
  6. Step 6: Final answer
    x = 1,921,286.40

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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.