Finding the Fourth Proportional to 790,888.05, 1,091,412.02 and 428,308.97
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Solution
The fourth proportional to 790,888.05, 1,091,412.02 and 428,308.97 is: 591,059.07
Step by Step Solution
- Step 1: Write the proportion equation
790,888.05 : 1,091,412.02 = 428,308.97 : x - Step 2: Convert to fraction form
790,888.05/1,091,412.02 = 428,308.97/x - Step 3: Cross multiply
790,888.05x = 1,091,412.02 × 428,308.97 - Step 4: Simplify right side
790,888.05x = 467,461,553,745.53 - Step 5: Solve for x
x = 467,461,553,745.53/790,888.05 - Step 6: Final answer
x = 591,059.07
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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.