Finding the Fourth Proportional to 1,316,557.62, 1,816,839 and 712,945.62
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Solution
The fourth proportional to 1,316,557.62, 1,816,839 and 712,945.62 is: 983,859.26
Step by Step Solution
- Step 1: Write the proportion equation
1,316,557.62 : 1,816,839 = 712,945.62 : x - Step 2: Convert to fraction form
1,316,557.62/1,816,839 = 712,945.62/x - Step 3: Cross multiply
1,316,557.62x = 1,816,839 × 712,945.62 - Step 4: Simplify right side
1,316,557.62x = 1,295,307,407,295.18 - Step 5: Solve for x
x = 1,295,307,407,295.18/1,316,557.62 - Step 6: Final answer
x = 983,859.26
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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.