Finding the Fourth Proportional to 1,219,329.05, 1,682,649.25 and 675,456.17
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Solution
The fourth proportional to 1,219,329.05, 1,682,649.25 and 675,456.17 is: 932,115.75
Step by Step Solution
- Step 1: Write the proportion equation
1,219,329.05 : 1,682,649.25 = 675,456.17 : x - Step 2: Convert to fraction form
1,219,329.05/1,682,649.25 = 675,456.17/x - Step 3: Cross multiply
1,219,329.05x = 1,682,649.25 × 675,456.17 - Step 4: Simplify right side
1,219,329.05x = 1,136,555,807,756.49 - Step 5: Solve for x
x = 1,136,555,807,756.49/1,219,329.05 - Step 6: Final answer
x = 932,115.75
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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.