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Finding the Fourth Proportional to 1,618,072, 2,232,940.32 and 902,680

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Solution

The fourth proportional to 1,618,072, 2,232,940.32 and 902,680 is: 1,245,698.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,072 : 2,232,940.32 = 902,680 : x
  2. Step 2: Convert to fraction form
    1,618,072/2,232,940.32 = 902,680/x
  3. Step 3: Cross multiply
    1,618,072x = 2,232,940.32 × 902,680
  4. Step 4: Simplify right side
    1,618,072x = 2,015,630,568,057.60
  5. Step 5: Solve for x
    x = 2,015,630,568,057.60/1,618,072
  6. Step 6: Final answer
    x = 1,245,698.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.