Finding the Fourth Proportional to 3,693,640.40, 5,539,760.76 and 1,296,921.68
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Solution
The fourth proportional to 3,693,640.40, 5,539,760.76 and 1,296,921.68 is: 1,945,136.79
Step by Step Solution
- Step 1: Write the proportion equation
3,693,640.40 : 5,539,760.76 = 1,296,921.68 : x - Step 2: Convert to fraction form
3,693,640.40/5,539,760.76 = 1,296,921.68/x - Step 3: Cross multiply
3,693,640.40x = 5,539,760.76 × 1,296,921.68 - Step 4: Simplify right side
3,693,640.40x = 7,184,635,831,657.28 - Step 5: Solve for x
x = 7,184,635,831,657.28/3,693,640.40 - Step 6: Final answer
x = 1,945,136.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.