Finding the Fourth Proportional to 871,748.68, 1,203,008.60 and 489,772.12
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Solution
The fourth proportional to 871,748.68, 1,203,008.60 and 489,772.12 is: 675,882.95
Step by Step Solution
- Step 1: Write the proportion equation
871,748.68 : 1,203,008.60 = 489,772.12 : x - Step 2: Convert to fraction form
871,748.68/1,203,008.60 = 489,772.12/x - Step 3: Cross multiply
871,748.68x = 1,203,008.60 × 489,772.12 - Step 4: Simplify right side
871,748.68x = 589,200,072,400.23 - Step 5: Solve for x
x = 589,200,072,400.23/871,748.68 - Step 6: Final answer
x = 675,882.95
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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.