Finding the Fourth Proportional to 861,743.52, 1,293,205.68 and 300,777.84
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Solution
The fourth proportional to 861,743.52, 1,293,205.68 and 300,777.84 is: 451,372.83
Step by Step Solution
- Step 1: Write the proportion equation
861,743.52 : 1,293,205.68 = 300,777.84 : x - Step 2: Convert to fraction form
861,743.52/1,293,205.68 = 300,777.84/x - Step 3: Cross multiply
861,743.52x = 1,293,205.68 × 300,777.84 - Step 4: Simplify right side
861,743.52x = 388,967,611,106.13 - Step 5: Solve for x
x = 388,967,611,106.13/861,743.52 - Step 6: Final answer
x = 451,372.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.