Finding the Fourth Proportional to 1,994,966.09, 2,992,168.57 and 647,140.54
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Solution
The fourth proportional to 1,994,966.09, 2,992,168.57 and 647,140.54 is: 970,619.80
Step by Step Solution
- Step 1: Write the proportion equation
1,994,966.09 : 2,992,168.57 = 647,140.54 : x - Step 2: Convert to fraction form
1,994,966.09/2,992,168.57 = 647,140.54/x - Step 3: Cross multiply
1,994,966.09x = 2,992,168.57 × 647,140.54 - Step 4: Simplify right side
1,994,966.09x = 1,936,353,581,886.26 - Step 5: Solve for x
x = 1,936,353,581,886.26/1,994,966.09 - Step 6: Final answer
x = 970,619.80
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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.