Finding the Fourth Proportional to 897,121.40, 1,238,057.40 and 489,245.49
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Solution
The fourth proportional to 897,121.40, 1,238,057.40 and 489,245.49 is: 675,175.06
Step by Step Solution
- Step 1: Write the proportion equation
897,121.40 : 1,238,057.40 = 489,245.49 : x - Step 2: Convert to fraction form
897,121.40/1,238,057.40 = 489,245.49/x - Step 3: Cross multiply
897,121.40x = 1,238,057.40 × 489,245.49 - Step 4: Simplify right side
897,121.40x = 605,713,999,311.13 - Step 5: Solve for x
x = 605,713,999,311.13/897,121.40 - Step 6: Final answer
x = 675,175.06
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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.