Home / 1,399,868.56-2,100,136.56-453,239.56

Finding the Fourth Proportional to 1,399,868.56, 2,100,136.56 and 453,239.56

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Solution

The fourth proportional to 1,399,868.56, 2,100,136.56 and 453,239.56 is: 679,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,868.56 : 2,100,136.56 = 453,239.56 : x
  2. Step 2: Convert to fraction form
    1,399,868.56/2,100,136.56 = 453,239.56/x
  3. Step 3: Cross multiply
    1,399,868.56x = 2,100,136.56 × 453,239.56
  4. Step 4: Simplify right side
    1,399,868.56x = 951,864,970,394.31
  5. Step 5: Solve for x
    x = 951,864,970,394.31/1,399,868.56
  6. Step 6: Final answer
    x = 679,967.39

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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.