Finding the Fourth Proportional to 1,478,968.70, 2,218,453.05 and 481,696.70
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Solution
The fourth proportional to 1,478,968.70, 2,218,453.05 and 481,696.70 is: 722,545.05
Step by Step Solution
- Step 1: Write the proportion equation
1,478,968.70 : 2,218,453.05 = 481,696.70 : x - Step 2: Convert to fraction form
1,478,968.70/2,218,453.05 = 481,696.70/x - Step 3: Cross multiply
1,478,968.70x = 2,218,453.05 × 481,696.70 - Step 4: Simplify right side
1,478,968.70x = 1,068,621,513,289.94 - Step 5: Solve for x
x = 1,068,621,513,289.94/1,478,968.70 - Step 6: Final answer
x = 722,545.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.