Home / 1,961,308.27-2,706,825.09-1,187,365.69

Finding the Fourth Proportional to 1,961,308.27, 2,706,825.09 and 1,187,365.69

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Solution

The fourth proportional to 1,961,308.27, 2,706,825.09 and 1,187,365.69 is: 1,638,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,308.27 : 2,706,825.09 = 1,187,365.69 : x
  2. Step 2: Convert to fraction form
    1,961,308.27/2,706,825.09 = 1,187,365.69/x
  3. Step 3: Cross multiply
    1,961,308.27x = 2,706,825.09 × 1,187,365.69
  4. Step 4: Simplify right side
    1,961,308.27x = 3,213,991,240,697.16
  5. Step 5: Solve for x
    x = 3,213,991,240,697.16/1,961,308.27
  6. Step 6: Final answer
    x = 1,638,697.64

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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.