Finding the Fourth Proportional to 939,146.82, 1,295,223.36 and 721,882.05
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Solution
The fourth proportional to 939,146.82, 1,295,223.36 and 721,882.05 is: 995,582.88
Step by Step Solution
- Step 1: Write the proportion equation
939,146.82 : 1,295,223.36 = 721,882.05 : x - Step 2: Convert to fraction form
939,146.82/1,295,223.36 = 721,882.05/x - Step 3: Cross multiply
939,146.82x = 1,295,223.36 × 721,882.05 - Step 4: Simplify right side
939,146.82x = 934,998,494,324.69 - Step 5: Solve for x
x = 934,998,494,324.69/939,146.82 - Step 6: Final answer
x = 995,582.88
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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.