Home / 1,689,959.14-2,534,940.60-427,786.78

Finding the Fourth Proportional to 1,689,959.14, 2,534,940.60 and 427,786.78

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Solution

The fourth proportional to 1,689,959.14, 2,534,940.60 and 427,786.78 is: 641,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,959.14 : 2,534,940.60 = 427,786.78 : x
  2. Step 2: Convert to fraction form
    1,689,959.14/2,534,940.60 = 427,786.78/x
  3. Step 3: Cross multiply
    1,689,959.14x = 2,534,940.60 × 427,786.78
  4. Step 4: Simplify right side
    1,689,959.14x = 1,084,414,076,765.27
  5. Step 5: Solve for x
    x = 1,084,414,076,765.27/1,689,959.14
  6. Step 6: Final answer
    x = 641,680.65

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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.