Finding the Fourth Proportional to 3,918,063.97, 5,874,412.92 and 1,995,253.17
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Solution
The fourth proportional to 3,918,063.97, 5,874,412.92 and 1,995,253.17 is: 2,991,513.43
Step by Step Solution
- Step 1: Write the proportion equation
3,918,063.97 : 5,874,412.92 = 1,995,253.17 : x - Step 2: Convert to fraction form
3,918,063.97/5,874,412.92 = 1,995,253.17/x - Step 3: Cross multiply
3,918,063.97x = 5,874,412.92 × 1,995,253.17 - Step 4: Simplify right side
3,918,063.97x = 11,720,941,000,518.96 - Step 5: Solve for x
x = 11,720,941,000,518.96/3,918,063.97 - Step 6: Final answer
x = 2,991,513.43
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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.