Finding the Fourth Proportional to 3,865,840.80, 5,796,687.60 and 1,619,440.80
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Solution
The fourth proportional to 3,865,840.80, 5,796,687.60 and 1,619,440.80 is: 2,428,292.55
Step by Step Solution
- Step 1: Write the proportion equation
3,865,840.80 : 5,796,687.60 = 1,619,440.80 : x - Step 2: Convert to fraction form
3,865,840.80/5,796,687.60 = 1,619,440.80/x - Step 3: Cross multiply
3,865,840.80x = 5,796,687.60 × 1,619,440.80 - Step 4: Simplify right side
3,865,840.80x = 9,387,392,404,294.08 - Step 5: Solve for x
x = 9,387,392,404,294.08/3,865,840.80 - Step 6: Final answer
x = 2,428,292.55
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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.