Finding the Fourth Proportional to 1,670,388.97, 2,305,143.05 and 906,442.69
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Solution
The fourth proportional to 1,670,388.97, 2,305,143.05 and 906,442.69 is: 1,250,894.32
Step by Step Solution
- Step 1: Write the proportion equation
1,670,388.97 : 2,305,143.05 = 906,442.69 : x - Step 2: Convert to fraction form
1,670,388.97/2,305,143.05 = 906,442.69/x - Step 3: Cross multiply
1,670,388.97x = 2,305,143.05 × 906,442.69 - Step 4: Simplify right side
1,670,388.97x = 2,089,480,067,076.80 - Step 5: Solve for x
x = 2,089,480,067,076.80/1,670,388.97 - Step 6: Final answer
x = 1,250,894.32
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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.