Home / 1,293,722.60-1,940,583.90-1,285,428.20

Finding the Fourth Proportional to 1,293,722.60, 1,940,583.90 and 1,285,428.20

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Solution

The fourth proportional to 1,293,722.60, 1,940,583.90 and 1,285,428.20 is: 1,928,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,722.60 : 1,940,583.90 = 1,285,428.20 : x
  2. Step 2: Convert to fraction form
    1,293,722.60/1,940,583.90 = 1,285,428.20/x
  3. Step 3: Cross multiply
    1,293,722.60x = 1,940,583.90 × 1,285,428.20
  4. Step 4: Simplify right side
    1,293,722.60x = 2,494,481,269,525.98
  5. Step 5: Solve for x
    x = 2,494,481,269,525.98/1,293,722.60
  6. Step 6: Final answer
    x = 1,928,142.30

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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.