Finding the Fourth Proportional to 2,586,391.76, 3,569,330.71 and 1,440,472.11
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Solution
The fourth proportional to 2,586,391.76, 3,569,330.71 and 1,440,472.11 is: 1,987,912.81
Step by Step Solution
- Step 1: Write the proportion equation
2,586,391.76 : 3,569,330.71 = 1,440,472.11 : x - Step 2: Convert to fraction form
2,586,391.76/3,569,330.71 = 1,440,472.11/x - Step 3: Cross multiply
2,586,391.76x = 3,569,330.71 × 1,440,472.11 - Step 4: Simplify right side
2,586,391.76x = 5,141,521,327,537.10 - Step 5: Solve for x
x = 5,141,521,327,537.10/2,586,391.76 - Step 6: Final answer
x = 1,987,912.81
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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.