Home / 1,243,005.70-1,863,524.40-682,040.20

Finding the Fourth Proportional to 1,243,005.70, 1,863,524.40 and 682,040.20

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Solution

The fourth proportional to 1,243,005.70, 1,863,524.40 and 682,040.20 is: 1,022,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,005.70 : 1,863,524.40 = 682,040.20 : x
  2. Step 2: Convert to fraction form
    1,243,005.70/1,863,524.40 = 682,040.20/x
  3. Step 3: Cross multiply
    1,243,005.70x = 1,863,524.40 × 682,040.20
  4. Step 4: Simplify right side
    1,243,005.70x = 1,270,998,554,480.88
  5. Step 5: Solve for x
    x = 1,270,998,554,480.88/1,243,005.70
  6. Step 6: Final answer
    x = 1,022,520.29

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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.