Finding the Fourth Proportional to 1,190,664.92, 1,643,136.18 and 646,811.48
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Solution
The fourth proportional to 1,190,664.92, 1,643,136.18 and 646,811.48 is: 892,609.94
Step by Step Solution
- Step 1: Write the proportion equation
1,190,664.92 : 1,643,136.18 = 646,811.48 : x - Step 2: Convert to fraction form
1,190,664.92/1,643,136.18 = 646,811.48/x - Step 3: Cross multiply
1,190,664.92x = 1,643,136.18 × 646,811.48 - Step 4: Simplify right side
1,190,664.92x = 1,062,799,344,427.35 - Step 5: Solve for x
x = 1,062,799,344,427.35/1,190,664.92 - Step 6: Final answer
x = 892,609.94
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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.