Finding the Fourth Proportional to 876,354.22, 1,209,364.36 and 489,147.49
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Solution
The fourth proportional to 876,354.22, 1,209,364.36 and 489,147.49 is: 675,021.04
Step by Step Solution
- Step 1: Write the proportion equation
876,354.22 : 1,209,364.36 = 489,147.49 : x - Step 2: Convert to fraction form
876,354.22/1,209,364.36 = 489,147.49/x - Step 3: Cross multiply
876,354.22x = 1,209,364.36 × 489,147.49 - Step 4: Simplify right side
876,354.22x = 591,557,541,189.46 - Step 5: Solve for x
x = 591,557,541,189.46/876,354.22 - Step 6: Final answer
x = 675,021.04
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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.