Finding the Fourth Proportional to 1,691,411.96, 2,331,890.52 and 1,343,706.05
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Solution
The fourth proportional to 1,691,411.96, 2,331,890.52 and 1,343,706.05 is: 1,852,520.54
Step by Step Solution
- Step 1: Write the proportion equation
1,691,411.96 : 2,331,890.52 = 1,343,706.05 : x - Step 2: Convert to fraction form
1,691,411.96/2,331,890.52 = 1,343,706.05/x - Step 3: Cross multiply
1,691,411.96x = 2,331,890.52 × 1,343,706.05 - Step 4: Simplify right side
1,691,411.96x = 3,133,375,399,661.65 - Step 5: Solve for x
x = 3,133,375,399,661.65/1,691,411.96 - Step 6: Final answer
x = 1,852,520.54
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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.