Finding the Fourth Proportional to 816,156.12, 1,126,268.49 and 448,634.49
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Solution
The fourth proportional to 816,156.12, 1,126,268.49 and 448,634.49 is: 619,100.78
Step by Step Solution
- Step 1: Write the proportion equation
816,156.12 : 1,126,268.49 = 448,634.49 : x - Step 2: Convert to fraction form
816,156.12/1,126,268.49 = 448,634.49/x - Step 3: Cross multiply
816,156.12x = 1,126,268.49 × 448,634.49 - Step 4: Simplify right side
816,156.12x = 505,282,889,614.22 - Step 5: Solve for x
x = 505,282,889,614.22/816,156.12 - Step 6: Final answer
x = 619,100.78
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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.