Finding the Fourth Proportional to 808,716.49, 1,211,876.65 and 328,360.17
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Solution
The fourth proportional to 808,716.49, 1,211,876.65 and 328,360.17 is: 492,053.80
Step by Step Solution
- Step 1: Write the proportion equation
808,716.49 : 1,211,876.65 = 328,360.17 : x - Step 2: Convert to fraction form
808,716.49/1,211,876.65 = 328,360.17/x - Step 3: Cross multiply
808,716.49x = 1,211,876.65 × 328,360.17 - Step 4: Simplify right side
808,716.49x = 397,932,022,813.03 - Step 5: Solve for x
x = 397,932,022,813.03/808,716.49 - Step 6: Final answer
x = 492,053.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.