Finding the Fourth Proportional to 428,731.62, 591,685.11 and 237,806.70
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Solution
The fourth proportional to 428,731.62, 591,685.11 and 237,806.70 is: 328,192.92
Step by Step Solution
- Step 1: Write the proportion equation
428,731.62 : 591,685.11 = 237,806.70 : x - Step 2: Convert to fraction form
428,731.62/591,685.11 = 237,806.70/x - Step 3: Cross multiply
428,731.62x = 591,685.11 × 237,806.70 - Step 4: Simplify right side
428,731.62x = 140,706,683,448.24 - Step 5: Solve for x
x = 140,706,683,448.24/428,731.62 - Step 6: Final answer
x = 328,192.92
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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.