Finding the Fourth Proportional to 1,618,630.80, 2,428,270.20 and 481,390.80
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Solution
The fourth proportional to 1,618,630.80, 2,428,270.20 and 481,390.80 is: 722,182.56
Step by Step Solution
- Step 1: Write the proportion equation
1,618,630.80 : 2,428,270.20 = 481,390.80 : x - Step 2: Convert to fraction form
1,618,630.80/2,428,270.20 = 481,390.80/x - Step 3: Cross multiply
1,618,630.80x = 2,428,270.20 × 481,390.80 - Step 4: Simplify right side
1,618,630.80x = 1,168,946,934,194.16 - Step 5: Solve for x
x = 1,168,946,934,194.16/1,618,630.80 - Step 6: Final answer
x = 722,182.56
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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.