Finding the Fourth Proportional to 868,215.27, 1,198,153.53 and 486,241.14
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Solution
The fourth proportional to 868,215.27, 1,198,153.53 and 486,241.14 is: 671,021.99
Step by Step Solution
- Step 1: Write the proportion equation
868,215.27 : 1,198,153.53 = 486,241.14 : x - Step 2: Convert to fraction form
868,215.27/1,198,153.53 = 486,241.14/x - Step 3: Cross multiply
868,215.27x = 1,198,153.53 × 486,241.14 - Step 4: Simplify right side
868,215.27x = 582,591,538,322.22 - Step 5: Solve for x
x = 582,591,538,322.22/868,215.27 - Step 6: Final answer
x = 671,021.99
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1.5x scale
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.