Home / 1,384,849.92-1,911,411.73-812,074.62

Finding the Fourth Proportional to 1,384,849.92, 1,911,411.73 and 812,074.62

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Solution

The fourth proportional to 1,384,849.92, 1,911,411.73 and 812,074.62 is: 1,120,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,849.92 : 1,911,411.73 = 812,074.62 : x
  2. Step 2: Convert to fraction form
    1,384,849.92/1,911,411.73 = 812,074.62/x
  3. Step 3: Cross multiply
    1,384,849.92x = 1,911,411.73 × 812,074.62
  4. Step 4: Simplify right side
    1,384,849.92x = 1,552,208,954,303.29
  5. Step 5: Solve for x
    x = 1,552,208,954,303.29/1,384,849.92
  6. Step 6: Final answer
    x = 1,120,849.94

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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.