Home / 1,265,993.75-1,898,035.54-412,555.78

Finding the Fourth Proportional to 1,265,993.75, 1,898,035.54 and 412,555.78

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Solution

The fourth proportional to 1,265,993.75, 1,898,035.54 and 412,555.78 is: 618,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,993.75 : 1,898,035.54 = 412,555.78 : x
  2. Step 2: Convert to fraction form
    1,265,993.75/1,898,035.54 = 412,555.78/x
  3. Step 3: Cross multiply
    1,265,993.75x = 1,898,035.54 × 412,555.78
  4. Step 4: Simplify right side
    1,265,993.75x = 783,045,534,013.58
  5. Step 5: Solve for x
    x = 783,045,534,013.58/1,265,993.75
  6. Step 6: Final answer
    x = 618,522.43

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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.