Finding the Fourth Proportional to 1,993,170.97, 2,750,665.37 and 1,122,305.14
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Solution
The fourth proportional to 1,993,170.97, 2,750,665.37 and 1,122,305.14 is: 1,548,831.45
Step by Step Solution
- Step 1: Write the proportion equation
1,993,170.97 : 2,750,665.37 = 1,122,305.14 : x - Step 2: Convert to fraction form
1,993,170.97/2,750,665.37 = 1,122,305.14/x - Step 3: Cross multiply
1,993,170.97x = 2,750,665.37 × 1,122,305.14 - Step 4: Simplify right side
1,993,170.97x = 3,087,085,883,171.00 - Step 5: Solve for x
x = 3,087,085,883,171.00/1,993,170.97 - Step 6: Final answer
x = 1,548,831.45
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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.