Finding the Fourth Proportional to 1,242,609.20, 1,713,814.44 and 806,549.84
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Solution
The fourth proportional to 1,242,609.20, 1,713,814.44 and 806,549.84 is: 1,112,398.62
Step by Step Solution
- Step 1: Write the proportion equation
1,242,609.20 : 1,713,814.44 = 806,549.84 : x - Step 2: Convert to fraction form
1,242,609.20/1,713,814.44 = 806,549.84/x - Step 3: Cross multiply
1,242,609.20x = 1,713,814.44 × 806,549.84 - Step 4: Simplify right side
1,242,609.20x = 1,382,276,762,371.69 - Step 5: Solve for x
x = 1,382,276,762,371.69/1,242,609.20 - Step 6: Final answer
x = 1,112,398.62
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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.