Home / 1,965,640.23-2,712,134.75-1,105,886.79

Finding the Fourth Proportional to 1,965,640.23, 2,712,134.75 and 1,105,886.79

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Solution

The fourth proportional to 1,965,640.23, 2,712,134.75 and 1,105,886.79 is: 1,525,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,640.23 : 2,712,134.75 = 1,105,886.79 : x
  2. Step 2: Convert to fraction form
    1,965,640.23/2,712,134.75 = 1,105,886.79/x
  3. Step 3: Cross multiply
    1,965,640.23x = 2,712,134.75 × 1,105,886.79
  4. Step 4: Simplify right side
    1,965,640.23x = 2,999,313,987,195.52
  5. Step 5: Solve for x
    x = 2,999,313,987,195.52/1,965,640.23
  6. Step 6: Final answer
    x = 1,525,871.29

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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.