Finding the Fourth Proportional to 823,619.88, 1,136,614.68 and 461,034.72
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Solution
The fourth proportional to 823,619.88, 1,136,614.68 and 461,034.72 is: 636,238.69
Step by Step Solution
- Step 1: Write the proportion equation
823,619.88 : 1,136,614.68 = 461,034.72 : x - Step 2: Convert to fraction form
823,619.88/1,136,614.68 = 461,034.72/x - Step 3: Cross multiply
823,619.88x = 1,136,614.68 × 461,034.72 - Step 4: Simplify right side
823,619.88x = 524,018,830,741.69 - Step 5: Solve for x
x = 524,018,830,741.69/823,619.88 - Step 6: Final answer
x = 636,238.69
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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.