Finding the Fourth Proportional to 1,319,668.26, 1,821,142.18 and 716,056.26
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Solution
The fourth proportional to 1,319,668.26, 1,821,142.18 and 716,056.26 is: 988,157.63
Step by Step Solution
- Step 1: Write the proportion equation
1,319,668.26 : 1,821,142.18 = 716,056.26 : x - Step 2: Convert to fraction form
1,319,668.26/1,821,142.18 = 716,056.26/x - Step 3: Cross multiply
1,319,668.26x = 1,821,142.18 × 716,056.26 - Step 4: Simplify right side
1,319,668.26x = 1,304,040,258,339.05 - Step 5: Solve for x
x = 1,304,040,258,339.05/1,319,668.26 - Step 6: Final answer
x = 988,157.63
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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.