Finding the Fourth Proportional to 738,577.28, 1,019,235.36 and 399,044.48
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Solution
The fourth proportional to 738,577.28, 1,019,235.36 and 399,044.48 is: 550,680.69
Step by Step Solution
- Step 1: Write the proportion equation
738,577.28 : 1,019,235.36 = 399,044.48 : x - Step 2: Convert to fraction form
738,577.28/1,019,235.36 = 399,044.48/x - Step 3: Cross multiply
738,577.28x = 1,019,235.36 × 399,044.48 - Step 4: Simplify right side
738,577.28x = 406,720,244,228.81 - Step 5: Solve for x
x = 406,720,244,228.81/738,577.28 - Step 6: Final answer
x = 550,680.69
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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.