Finding the Fourth Proportional to 490,114.68, 676,504.94 and 286,220.60
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Solution
The fourth proportional to 490,114.68, 676,504.94 and 286,220.60 is: 395,070.09
Step by Step Solution
- Step 1: Write the proportion equation
490,114.68 : 676,504.94 = 286,220.60 : x - Step 2: Convert to fraction form
490,114.68/676,504.94 = 286,220.60/x - Step 3: Cross multiply
490,114.68x = 676,504.94 × 286,220.60 - Step 4: Simplify right side
490,114.68x = 193,629,649,829.76 - Step 5: Solve for x
x = 193,629,649,829.76/490,114.68 - Step 6: Final answer
x = 395,070.09
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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.