Home / 1,519,813.82-2,097,327.11-831,478.65

Finding the Fourth Proportional to 1,519,813.82, 2,097,327.11 and 831,478.65

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Solution

The fourth proportional to 1,519,813.82, 2,097,327.11 and 831,478.65 is: 1,147,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,813.82 : 2,097,327.11 = 831,478.65 : x
  2. Step 2: Convert to fraction form
    1,519,813.82/2,097,327.11 = 831,478.65/x
  3. Step 3: Cross multiply
    1,519,813.82x = 2,097,327.11 × 831,478.65
  4. Step 4: Simplify right side
    1,519,813.82x = 1,743,882,709,873.81
  5. Step 5: Solve for x
    x = 1,743,882,709,873.81/1,519,813.82
  6. Step 6: Final answer
    x = 1,147,431.81

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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.