Home / 2,143,254.36-3,215,441.74-1,243,831.48

Finding the Fourth Proportional to 2,143,254.36, 3,215,441.74 and 1,243,831.48

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Solution

The fourth proportional to 2,143,254.36, 3,215,441.74 and 1,243,831.48 is: 1,866,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,254.36 : 3,215,441.74 = 1,243,831.48 : x
  2. Step 2: Convert to fraction form
    2,143,254.36/3,215,441.74 = 1,243,831.48/x
  3. Step 3: Cross multiply
    2,143,254.36x = 3,215,441.74 × 1,243,831.48
  4. Step 4: Simplify right side
    2,143,254.36x = 3,999,467,658,317.98
  5. Step 5: Solve for x
    x = 3,999,467,658,317.98/2,143,254.36
  6. Step 6: Final answer
    x = 1,866,072.33

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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.