Finding the Fourth Proportional to 790,926.88, 1,091,473.14 and 428,342.26
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Solution
The fourth proportional to 790,926.88, 1,091,473.14 and 428,342.26 is: 591,109.09
Step by Step Solution
- Step 1: Write the proportion equation
790,926.88 : 1,091,473.14 = 428,342.26 : x - Step 2: Convert to fraction form
790,926.88/1,091,473.14 = 428,342.26/x - Step 3: Cross multiply
790,926.88x = 1,091,473.14 × 428,342.26 - Step 4: Simplify right side
790,926.88x = 467,524,071,516.90 - Step 5: Solve for x
x = 467,524,071,516.90/790,926.88 - Step 6: Final answer
x = 591,109.09
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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.