Finding the Fourth Proportional to 4,479,830.20, 6,722,369.70 and 1,640,229.40
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Solution
The fourth proportional to 4,479,830.20, 6,722,369.70 and 1,640,229.40 is: 2,461,304.99
Step by Step Solution
- Step 1: Write the proportion equation
4,479,830.20 : 6,722,369.70 = 1,640,229.40 : x - Step 2: Convert to fraction form
4,479,830.20/6,722,369.70 = 1,640,229.40/x - Step 3: Cross multiply
4,479,830.20x = 6,722,369.70 × 1,640,229.40 - Step 4: Simplify right side
4,479,830.20x = 11,026,228,419,609.18 - Step 5: Solve for x
x = 11,026,228,419,609.18/4,479,830.20 - Step 6: Final answer
x = 2,461,304.99
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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.