Finding the Fourth Proportional to 1,427,571.12, 1,970,212.74 and 854,611.14
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Solution
The fourth proportional to 1,427,571.12, 1,970,212.74 and 854,611.14 is: 1,179,461.91
Step by Step Solution
- Step 1: Write the proportion equation
1,427,571.12 : 1,970,212.74 = 854,611.14 : x - Step 2: Convert to fraction form
1,427,571.12/1,970,212.74 = 854,611.14/x - Step 3: Cross multiply
1,427,571.12x = 1,970,212.74 × 854,611.14 - Step 4: Simplify right side
1,427,571.12x = 1,683,765,755,773.92 - Step 5: Solve for x
x = 1,683,765,755,773.92/1,427,571.12 - Step 6: Final answer
x = 1,179,461.91
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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.