Finding the Fourth Proportional to 1,975,015.35, 2,725,742.86 and 1,115,630.97
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Solution
The fourth proportional to 1,975,015.35, 2,725,742.86 and 1,115,630.97 is: 1,539,695.95
Step by Step Solution
- Step 1: Write the proportion equation
1,975,015.35 : 2,725,742.86 = 1,115,630.97 : x - Step 2: Convert to fraction form
1,975,015.35/2,725,742.86 = 1,115,630.97/x - Step 3: Cross multiply
1,975,015.35x = 2,725,742.86 × 1,115,630.97 - Step 4: Simplify right side
1,975,015.35x = 3,040,923,131,665.51 - Step 5: Solve for x
x = 3,040,923,131,665.51/1,975,015.35 - Step 6: Final answer
x = 1,539,695.95
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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.