Home / 1,221,723.20-1,833,022.20-511,968.80

Finding the Fourth Proportional to 1,221,723.20, 1,833,022.20 and 511,968.80

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Solution

The fourth proportional to 1,221,723.20, 1,833,022.20 and 511,968.80 is: 768,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,723.20 : 1,833,022.20 = 511,968.80 : x
  2. Step 2: Convert to fraction form
    1,221,723.20/1,833,022.20 = 511,968.80/x
  3. Step 3: Cross multiply
    1,221,723.20x = 1,833,022.20 × 511,968.80
  4. Step 4: Simplify right side
    1,221,723.20x = 938,450,176,107.36
  5. Step 5: Solve for x
    x = 938,450,176,107.36/1,221,723.20
  6. Step 6: Final answer
    x = 768,136.49

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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.