Finding the Fourth Proportional to 876,351.72, 1,209,360.92 and 489,144.99
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Solution
The fourth proportional to 876,351.72, 1,209,360.92 and 489,144.99 is: 675,017.60
Step by Step Solution
- Step 1: Write the proportion equation
876,351.72 : 1,209,360.92 = 489,144.99 : x - Step 2: Convert to fraction form
876,351.72/1,209,360.92 = 489,144.99/x - Step 3: Cross multiply
876,351.72x = 1,209,360.92 × 489,144.99 - Step 4: Simplify right side
876,351.72x = 591,552,832,674.07 - Step 5: Solve for x
x = 591,552,832,674.07/876,351.72 - Step 6: Final answer
x = 675,017.60
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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.