Finding the Fourth Proportional to 1,478,539.53, 2,039,883.36 and 1,206,136.53
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Solution
The fourth proportional to 1,478,539.53, 2,039,883.36 and 1,206,136.53 is: 1,664,059.56
Step by Step Solution
- Step 1: Write the proportion equation
1,478,539.53 : 2,039,883.36 = 1,206,136.53 : x - Step 2: Convert to fraction form
1,478,539.53/2,039,883.36 = 1,206,136.53/x - Step 3: Cross multiply
1,478,539.53x = 2,039,883.36 × 1,206,136.53 - Step 4: Simplify right side
1,478,539.53x = 2,460,377,837,435.14 - Step 5: Solve for x
x = 2,460,377,837,435.14/1,478,539.53 - Step 6: Final answer
x = 1,664,059.56
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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.