Finding the Fourth Proportional to 1,218,649.93, 1,681,754.60 and 674,784.68
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Solution
The fourth proportional to 1,218,649.93, 1,681,754.60 and 674,784.68 is: 931,212.65
Step by Step Solution
- Step 1: Write the proportion equation
1,218,649.93 : 1,681,754.60 = 674,784.68 : x - Step 2: Convert to fraction form
1,218,649.93/1,681,754.60 = 674,784.68/x - Step 3: Cross multiply
1,218,649.93x = 1,681,754.60 × 674,784.68 - Step 4: Simplify right side
1,218,649.93x = 1,134,822,232,877.72 - Step 5: Solve for x
x = 1,134,822,232,877.72/1,218,649.93 - Step 6: Final answer
x = 931,212.65
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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.