Finding the Fourth Proportional to 3,862,279.98, 5,330,067.57 and 2,230,657.02
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Solution
The fourth proportional to 3,862,279.98, 5,330,067.57 and 2,230,657.02 is: 3,078,376.69
Step by Step Solution
- Step 1: Write the proportion equation
3,862,279.98 : 5,330,067.57 = 2,230,657.02 : x - Step 2: Convert to fraction form
3,862,279.98/5,330,067.57 = 2,230,657.02/x - Step 3: Cross multiply
3,862,279.98x = 5,330,067.57 × 2,230,657.02 - Step 4: Simplify right side
3,862,279.98x = 11,889,552,642,094.84 - Step 5: Solve for x
x = 11,889,552,642,094.84/3,862,279.98 - Step 6: Final answer
x = 3,078,376.69
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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.