Home / 1,389,769.92-2,081,939.88-957,411.09

Finding the Fourth Proportional to 1,389,769.92, 2,081,939.88 and 957,411.09

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Solution

The fourth proportional to 1,389,769.92, 2,081,939.88 and 957,411.09 is: 1,434,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,769.92 : 2,081,939.88 = 957,411.09 : x
  2. Step 2: Convert to fraction form
    1,389,769.92/2,081,939.88 = 957,411.09/x
  3. Step 3: Cross multiply
    1,389,769.92x = 2,081,939.88 × 957,411.09
  4. Step 4: Simplify right side
    1,389,769.92x = 1,993,272,329,825.27
  5. Step 5: Solve for x
    x = 1,993,272,329,825.27/1,389,769.92
  6. Step 6: Final answer
    x = 1,434,246.27

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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.