Finding the Fourth Proportional to 1,319,805.14, 1,821,331.09 and 716,193.14
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Solution
The fourth proportional to 1,319,805.14, 1,821,331.09 and 716,193.14 is: 988,346.53
Step by Step Solution
- Step 1: Write the proportion equation
1,319,805.14 : 1,821,331.09 = 716,193.14 : x - Step 2: Convert to fraction form
1,319,805.14/1,821,331.09 = 716,193.14/x - Step 3: Cross multiply
1,319,805.14x = 1,821,331.09 × 716,193.14 - Step 4: Simplify right side
1,319,805.14x = 1,304,424,836,374.59 - Step 5: Solve for x
x = 1,304,424,836,374.59/1,319,805.14 - Step 6: Final answer
x = 988,346.53
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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.