Finding the Fourth Proportional to 765,804.43, 1,057,136.84 and 545,183.92
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Solution
The fourth proportional to 765,804.43, 1,057,136.84 and 545,183.92 is: 752,586.41
Step by Step Solution
- Step 1: Write the proportion equation
765,804.43 : 1,057,136.84 = 545,183.92 : x - Step 2: Convert to fraction form
765,804.43/1,057,136.84 = 545,183.92/x - Step 3: Cross multiply
765,804.43x = 1,057,136.84 × 545,183.92 - Step 4: Simplify right side
765,804.43x = 576,334,006,407.61 - Step 5: Solve for x
x = 576,334,006,407.61/765,804.43 - Step 6: Final answer
x = 752,586.41
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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.