Home / 1,384,847.97-1,911,409.07-812,072.67

Finding the Fourth Proportional to 1,384,847.97, 1,911,409.07 and 812,072.67

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Solution

The fourth proportional to 1,384,847.97, 1,911,409.07 and 812,072.67 is: 1,120,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,847.97 : 1,911,409.07 = 812,072.67 : x
  2. Step 2: Convert to fraction form
    1,384,847.97/1,911,409.07 = 812,072.67/x
  3. Step 3: Cross multiply
    1,384,847.97x = 1,911,409.07 × 812,072.67
  4. Step 4: Simplify right side
    1,384,847.97x = 1,552,203,071,028.55
  5. Step 5: Solve for x
    x = 1,552,203,071,028.55/1,384,847.97
  6. Step 6: Final answer
    x = 1,120,847.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.