Home / 1,997,370.50-2,756,539.22-1,222,997.54

Finding the Fourth Proportional to 1,997,370.50, 2,756,539.22 and 1,222,997.54

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Solution

The fourth proportional to 1,997,370.50, 2,756,539.22 and 1,222,997.54 is: 1,687,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,370.50 : 2,756,539.22 = 1,222,997.54 : x
  2. Step 2: Convert to fraction form
    1,997,370.50/2,756,539.22 = 1,222,997.54/x
  3. Step 3: Cross multiply
    1,997,370.50x = 2,756,539.22 × 1,222,997.54
  4. Step 4: Simplify right side
    1,997,370.50x = 3,371,240,665,075.83
  5. Step 5: Solve for x
    x = 3,371,240,665,075.83/1,997,370.50
  6. Step 6: Final answer
    x = 1,687,839.42

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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.