Finding the Fourth Proportional to 1,190,493.99, 1,642,893.71 and 646,640.42
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Solution
The fourth proportional to 1,190,493.99, 1,642,893.71 and 646,640.42 is: 892,370.29
Step by Step Solution
- Step 1: Write the proportion equation
1,190,493.99 : 1,642,893.71 = 646,640.42 : x - Step 2: Convert to fraction form
1,190,493.99/1,642,893.71 = 646,640.42/x - Step 3: Cross multiply
1,190,493.99x = 1,642,893.71 × 646,640.42 - Step 4: Simplify right side
1,190,493.99x = 1,062,361,467,202.09 - Step 5: Solve for x
x = 1,062,361,467,202.09/1,190,493.99 - Step 6: Final answer
x = 892,370.29
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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.