Home / 1,219,589.25-1,683,618.21-857,323.65

Finding the Fourth Proportional to 1,219,589.25, 1,683,618.21 and 857,323.65

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Solution

The fourth proportional to 1,219,589.25, 1,683,618.21 and 857,323.65 is: 1,183,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,589.25 : 1,683,618.21 = 857,323.65 : x
  2. Step 2: Convert to fraction form
    1,219,589.25/1,683,618.21 = 857,323.65/x
  3. Step 3: Cross multiply
    1,219,589.25x = 1,683,618.21 × 857,323.65
  4. Step 4: Simplify right side
    1,219,589.25x = 1,443,405,709,003.67
  5. Step 5: Solve for x
    x = 1,443,405,709,003.67/1,219,589.25
  6. Step 6: Final answer
    x = 1,183,517.90

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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.