Home / 1,189,574.94-1,784,338.89-479,586.78

Finding the Fourth Proportional to 1,189,574.94, 1,784,338.89 and 479,586.78

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Solution

The fourth proportional to 1,189,574.94, 1,784,338.89 and 479,586.78 is: 719,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,574.94 : 1,784,338.89 = 479,586.78 : x
  2. Step 2: Convert to fraction form
    1,189,574.94/1,784,338.89 = 479,586.78/x
  3. Step 3: Cross multiply
    1,189,574.94x = 1,784,338.89 × 479,586.78
  4. Step 4: Simplify right side
    1,189,574.94x = 855,745,342,683.87
  5. Step 5: Solve for x
    x = 855,745,342,683.87/1,189,574.94
  6. Step 6: Final answer
    x = 719,370.69

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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.