Finding the Fourth Proportional to 1,987,820.16, 2,743,116.84 and 1,214,743.68
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Solution
The fourth proportional to 1,987,820.16, 2,743,116.84 and 1,214,743.68 is: 1,676,300.46
Step by Step Solution
- Step 1: Write the proportion equation
1,987,820.16 : 2,743,116.84 = 1,214,743.68 : x - Step 2: Convert to fraction form
1,987,820.16/2,743,116.84 = 1,214,743.68/x - Step 3: Cross multiply
1,987,820.16x = 2,743,116.84 × 1,214,743.68 - Step 4: Simplify right side
1,987,820.16x = 3,332,183,844,891.57 - Step 5: Solve for x
x = 3,332,183,844,891.57/1,987,820.16 - Step 6: Final answer
x = 1,676,300.46
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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.