Home / 1,189,816.62-1,784,112.57-479,653.98

Finding the Fourth Proportional to 1,189,816.62, 1,784,112.57 and 479,653.98

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Solution

The fourth proportional to 1,189,816.62, 1,784,112.57 and 479,653.98 is: 719,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,816.62 : 1,784,112.57 = 479,653.98 : x
  2. Step 2: Convert to fraction form
    1,189,816.62/1,784,112.57 = 479,653.98/x
  3. Step 3: Cross multiply
    1,189,816.62x = 1,784,112.57 × 479,653.98
  4. Step 4: Simplify right side
    1,189,816.62x = 855,756,694,968.53
  5. Step 5: Solve for x
    x = 855,756,694,968.53/1,189,816.62
  6. Step 6: Final answer
    x = 719,234.11

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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.