Finding the Fourth Proportional to 1,405,706.82, 1,938,425.49 and 1,202,430.57
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Solution
The fourth proportional to 1,405,706.82, 1,938,425.49 and 1,202,430.57 is: 1,658,113.94
Step by Step Solution
- Step 1: Write the proportion equation
1,405,706.82 : 1,938,425.49 = 1,202,430.57 : x - Step 2: Convert to fraction form
1,405,706.82/1,938,425.49 = 1,202,430.57/x - Step 3: Cross multiply
1,405,706.82x = 1,938,425.49 × 1,202,430.57 - Step 4: Simplify right side
1,405,706.82x = 2,330,822,066,843.23 - Step 5: Solve for x
x = 2,330,822,066,843.23/1,405,706.82 - Step 6: Final answer
x = 1,658,113.94
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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.