Finding the Fourth Proportional to 1,689,355.98, 2,331,311.67 and 925,436.70
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Solution
The fourth proportional to 1,689,355.98, 2,331,311.67 and 925,436.70 is: 1,277,102.87
Step by Step Solution
- Step 1: Write the proportion equation
1,689,355.98 : 2,331,311.67 = 925,436.70 : x - Step 2: Convert to fraction form
1,689,355.98/2,331,311.67 = 925,436.70/x - Step 3: Cross multiply
1,689,355.98x = 2,331,311.67 × 925,436.70 - Step 4: Simplify right side
1,689,355.98x = 2,157,481,378,556.29 - Step 5: Solve for x
x = 2,157,481,378,556.29/1,689,355.98 - Step 6: Final answer
x = 1,277,102.87
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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.