Finding the Fourth Proportional to 876,353.22, 1,209,362.99 and 489,146.49
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Solution
The fourth proportional to 876,353.22, 1,209,362.99 and 489,146.49 is: 675,019.67
Step by Step Solution
- Step 1: Write the proportion equation
876,353.22 : 1,209,362.99 = 489,146.49 : x - Step 2: Convert to fraction form
876,353.22/1,209,362.99 = 489,146.49/x - Step 3: Cross multiply
876,353.22x = 1,209,362.99 × 489,146.49 - Step 4: Simplify right side
876,353.22x = 591,555,659,248.67 - Step 5: Solve for x
x = 591,555,659,248.67/876,353.22 - Step 6: Final answer
x = 675,019.67
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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.