Finding the Fourth Proportional to 1,190,544.32, 1,642,968.84 and 646,690.72
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Solution
The fourth proportional to 1,190,544.32, 1,642,968.84 and 646,690.72 is: 892,442.80
Step by Step Solution
- Step 1: Write the proportion equation
1,190,544.32 : 1,642,968.84 = 646,690.72 : x - Step 2: Convert to fraction form
1,190,544.32/1,642,968.84 = 646,690.72/x - Step 3: Cross multiply
1,190,544.32x = 1,642,968.84 × 646,690.72 - Step 4: Simplify right side
1,190,544.32x = 1,062,492,702,077.16 - Step 5: Solve for x
x = 1,062,492,702,077.16/1,190,544.32 - Step 6: Final answer
x = 892,442.80
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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.