Finding the Fourth Proportional to 1,301,926.21, 1,796,578.91 and 721,114.91
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Solution
The fourth proportional to 1,301,926.21, 1,796,578.91 and 721,114.91 is: 995,094.67
Step by Step Solution
- Step 1: Write the proportion equation
1,301,926.21 : 1,796,578.91 = 721,114.91 : x - Step 2: Convert to fraction form
1,301,926.21/1,796,578.91 = 721,114.91/x - Step 3: Cross multiply
1,301,926.21x = 1,796,578.91 × 721,114.91 - Step 4: Simplify right side
1,301,926.21x = 1,295,539,838,549.61 - Step 5: Solve for x
x = 1,295,539,838,549.61/1,301,926.21 - Step 6: Final answer
x = 995,094.67
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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.