Finding the Fourth Proportional to 871,182.27, 1,202,231.57 and 489,209.09
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Solution
The fourth proportional to 871,182.27, 1,202,231.57 and 489,209.09 is: 675,108.56
Step by Step Solution
- Step 1: Write the proportion equation
871,182.27 : 1,202,231.57 = 489,209.09 : x - Step 2: Convert to fraction form
871,182.27/1,202,231.57 = 489,209.09/x - Step 3: Cross multiply
871,182.27x = 1,202,231.57 × 489,209.09 - Step 4: Simplify right side
871,182.27x = 588,142,603,871.77 - Step 5: Solve for x
x = 588,142,603,871.77/871,182.27 - Step 6: Final answer
x = 675,108.56
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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.