Finding the Fourth Proportional to 2,428,129.80, 3,642,194.70 and 911,809.80
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Solution
The fourth proportional to 2,428,129.80, 3,642,194.70 and 911,809.80 is: 1,367,714.70
Step by Step Solution
- Step 1: Write the proportion equation
2,428,129.80 : 3,642,194.70 = 911,809.80 : x - Step 2: Convert to fraction form
2,428,129.80/3,642,194.70 = 911,809.80/x - Step 3: Cross multiply
2,428,129.80x = 3,642,194.70 × 911,809.80 - Step 4: Simplify right side
2,428,129.80x = 3,320,988,820,968.06 - Step 5: Solve for x
x = 3,320,988,820,968.06/2,428,129.80 - Step 6: Final answer
x = 1,367,714.70
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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.