Home / 1,311,698.67-1,963,103.95-806,579.59

Finding the Fourth Proportional to 1,311,698.67, 1,963,103.95 and 806,579.59

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Solution

The fourth proportional to 1,311,698.67, 1,963,103.95 and 806,579.59 is: 1,207,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,698.67 : 1,963,103.95 = 806,579.59 : x
  2. Step 2: Convert to fraction form
    1,311,698.67/1,963,103.95 = 806,579.59/x
  3. Step 3: Cross multiply
    1,311,698.67x = 1,963,103.95 × 806,579.59
  4. Step 4: Simplify right side
    1,311,698.67x = 1,583,399,579,118.38
  5. Step 5: Solve for x
    x = 1,583,399,579,118.38/1,311,698.67
  6. Step 6: Final answer
    x = 1,207,136.68

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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.