Finding the Fourth Proportional to 1,093,364.70, 1,638,511.05 and 869,108.70
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Solution
The fourth proportional to 1,093,364.70, 1,638,511.05 and 869,108.70 is: 1,302,442.09
Step by Step Solution
- Step 1: Write the proportion equation
1,093,364.70 : 1,638,511.05 = 869,108.70 : x - Step 2: Convert to fraction form
1,093,364.70/1,638,511.05 = 869,108.70/x - Step 3: Cross multiply
1,093,364.70x = 1,638,511.05 × 869,108.70 - Step 4: Simplify right side
1,093,364.70x = 1,424,044,208,601.14 - Step 5: Solve for x
x = 1,424,044,208,601.14/1,093,364.70 - Step 6: Final answer
x = 1,302,442.09
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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.