Home / 1,384,849.97-1,911,411.82-812,074.67

Finding the Fourth Proportional to 1,384,849.97, 1,911,411.82 and 812,074.67

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Solution

The fourth proportional to 1,384,849.97, 1,911,411.82 and 812,074.67 is: 1,120,850.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,849.97 : 1,911,411.82 = 812,074.67 : x
  2. Step 2: Convert to fraction form
    1,384,849.97/1,911,411.82 = 812,074.67/x
  3. Step 3: Cross multiply
    1,384,849.97x = 1,911,411.82 × 812,074.67
  4. Step 4: Simplify right side
    1,384,849.97x = 1,552,209,113,403.54
  5. Step 5: Solve for x
    x = 1,552,209,113,403.54/1,384,849.97
  6. Step 6: Final answer
    x = 1,120,850.02

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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.