Finding the Fourth Proportional to 908,042.08, 1,253,136.80 and 505,634.08
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Solution
The fourth proportional to 908,042.08, 1,253,136.80 and 505,634.08 is: 697,796.60
Step by Step Solution
- Step 1: Write the proportion equation
908,042.08 : 1,253,136.80 = 505,634.08 : x - Step 2: Convert to fraction form
908,042.08/1,253,136.80 = 505,634.08/x - Step 3: Cross multiply
908,042.08x = 1,253,136.80 × 505,634.08 - Step 4: Simplify right side
908,042.08x = 633,628,672,982.14 - Step 5: Solve for x
x = 633,628,672,982.14/908,042.08 - Step 6: Final answer
x = 697,796.60
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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.