Home / 1,222,642.77-1,831,578.42-800,639.25

Finding the Fourth Proportional to 1,222,642.77, 1,831,578.42 and 800,639.25

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Solution

The fourth proportional to 1,222,642.77, 1,831,578.42 and 800,639.25 is: 1,199,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,642.77 : 1,831,578.42 = 800,639.25 : x
  2. Step 2: Convert to fraction form
    1,222,642.77/1,831,578.42 = 800,639.25/x
  3. Step 3: Cross multiply
    1,222,642.77x = 1,831,578.42 × 800,639.25
  4. Step 4: Simplify right side
    1,222,642.77x = 1,466,433,572,504.99
  5. Step 5: Solve for x
    x = 1,466,433,572,504.99/1,222,642.77
  6. Step 6: Final answer
    x = 1,199,396.59

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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.