Finding the Fourth Proportional to 2,639,832.48, 3,642,968.79 and 1,432,608.48
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Solution
The fourth proportional to 2,639,832.48, 3,642,968.79 and 1,432,608.48 is: 1,976,999.68
Step by Step Solution
- Step 1: Write the proportion equation
2,639,832.48 : 3,642,968.79 = 1,432,608.48 : x - Step 2: Convert to fraction form
2,639,832.48/3,642,968.79 = 1,432,608.48/x - Step 3: Cross multiply
2,639,832.48x = 3,642,968.79 × 1,432,608.48 - Step 4: Simplify right side
2,639,832.48x = 5,218,947,980,929.34 - Step 5: Solve for x
x = 5,218,947,980,929.34/2,639,832.48 - Step 6: Final answer
x = 1,976,999.68
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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.