Finding the Fourth Proportional to 1,689,369.48, 2,331,330.30 and 925,450.20
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Solution
The fourth proportional to 1,689,369.48, 2,331,330.30 and 925,450.20 is: 1,277,121.50
Step by Step Solution
- Step 1: Write the proportion equation
1,689,369.48 : 2,331,330.30 = 925,450.20 : x - Step 2: Convert to fraction form
1,689,369.48/2,331,330.30 = 925,450.20/x - Step 3: Cross multiply
1,689,369.48x = 2,331,330.30 × 925,450.20 - Step 4: Simplify right side
1,689,369.48x = 2,157,530,092,401.06 - Step 5: Solve for x
x = 2,157,530,092,401.06/1,689,369.48 - Step 6: Final answer
x = 1,277,121.50
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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.