Finding the Fourth Proportional to 1,272,796.62, 1,909,194.21 and 374,245.80
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Solution
The fourth proportional to 1,272,796.62, 1,909,194.21 and 374,245.80 is: 561,368.49
Step by Step Solution
- Step 1: Write the proportion equation
1,272,796.62 : 1,909,194.21 = 374,245.80 : x - Step 2: Convert to fraction form
1,272,796.62/1,909,194.21 = 374,245.80/x - Step 3: Cross multiply
1,272,796.62x = 1,909,194.21 × 374,245.80 - Step 4: Simplify right side
1,272,796.62x = 714,507,914,476.82 - Step 5: Solve for x
x = 714,507,914,476.82/1,272,796.62 - Step 6: Final answer
x = 561,368.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.