Finding the Fourth Proportional to 1,190,146.26, 1,642,395.87 and 646,277.19
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Solution
The fourth proportional to 1,190,146.26, 1,642,395.87 and 646,277.19 is: 891,859.28
Step by Step Solution
- Step 1: Write the proportion equation
1,190,146.26 : 1,642,395.87 = 646,277.19 : x - Step 2: Convert to fraction form
1,190,146.26/1,642,395.87 = 646,277.19/x - Step 3: Cross multiply
1,190,146.26x = 1,642,395.87 × 646,277.19 - Step 4: Simplify right side
1,190,146.26x = 1,061,442,987,731.21 - Step 5: Solve for x
x = 1,061,442,987,731.21/1,190,146.26 - Step 6: Final answer
x = 891,859.28
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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.