Home / 1,915,279.70-2,643,093.97-1,055,821.10

Finding the Fourth Proportional to 1,915,279.70, 2,643,093.97 and 1,055,821.10

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Solution

The fourth proportional to 1,915,279.70, 2,643,093.97 and 1,055,821.10 is: 1,457,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,279.70 : 2,643,093.97 = 1,055,821.10 : x
  2. Step 2: Convert to fraction form
    1,915,279.70/2,643,093.97 = 1,055,821.10/x
  3. Step 3: Cross multiply
    1,915,279.70x = 2,643,093.97 × 1,055,821.10
  4. Step 4: Simplify right side
    1,915,279.70x = 2,790,634,382,808.77
  5. Step 5: Solve for x
    x = 2,790,634,382,808.77/1,915,279.70
  6. Step 6: Final answer
    x = 1,457,037.52

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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.