Finding the Fourth Proportional to 2,643,207.68, 3,647,555.72 and 1,555,543.32
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Solution
The fourth proportional to 2,643,207.68, 3,647,555.72 and 1,555,543.32 is: 2,146,608.07
Step by Step Solution
- Step 1: Write the proportion equation
2,643,207.68 : 3,647,555.72 = 1,555,543.32 : x - Step 2: Convert to fraction form
2,643,207.68/3,647,555.72 = 1,555,543.32/x - Step 3: Cross multiply
2,643,207.68x = 3,647,555.72 × 1,555,543.32 - Step 4: Simplify right side
2,643,207.68x = 5,673,930,934,573.79 - Step 5: Solve for x
x = 5,673,930,934,573.79/2,643,207.68 - Step 6: Final answer
x = 2,146,608.07
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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.