Home / 1,911,939.23-2,867,896.05-774,684.65

Finding the Fourth Proportional to 1,911,939.23, 2,867,896.05 and 774,684.65

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Solution

The fourth proportional to 1,911,939.23, 2,867,896.05 and 774,684.65 is: 1,162,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,939.23 : 2,867,896.05 = 774,684.65 : x
  2. Step 2: Convert to fraction form
    1,911,939.23/2,867,896.05 = 774,684.65/x
  3. Step 3: Cross multiply
    1,911,939.23x = 2,867,896.05 × 774,684.65
  4. Step 4: Simplify right side
    1,911,939.23x = 2,221,715,047,730.63
  5. Step 5: Solve for x
    x = 2,221,715,047,730.63/1,911,939.23
  6. Step 6: Final answer
    x = 1,162,021.79

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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.