Home / 1,921,100.29-2,651,046.77-1,105,430.09

Finding the Fourth Proportional to 1,921,100.29, 2,651,046.77 and 1,105,430.09

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Solution

The fourth proportional to 1,921,100.29, 2,651,046.77 and 1,105,430.09 is: 1,525,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,100.29 : 2,651,046.77 = 1,105,430.09 : x
  2. Step 2: Convert to fraction form
    1,921,100.29/2,651,046.77 = 1,105,430.09/x
  3. Step 3: Cross multiply
    1,921,100.29x = 2,651,046.77 × 1,105,430.09
  4. Step 4: Simplify right side
    1,921,100.29x = 2,930,546,859,063.65
  5. Step 5: Solve for x
    x = 2,930,546,859,063.65/1,921,100.29
  6. Step 6: Final answer
    x = 1,525,452.30

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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.