Finding the Fourth Proportional to 436,663.62, 654,995.39 and 121,120.54
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Solution
The fourth proportional to 436,663.62, 654,995.39 and 121,120.54 is: 181,680.80
Step by Step Solution
- Step 1: Write the proportion equation
436,663.62 : 654,995.39 = 121,120.54 : x - Step 2: Convert to fraction form
436,663.62/654,995.39 = 121,120.54/x - Step 3: Cross multiply
436,663.62x = 654,995.39 × 121,120.54 - Step 4: Simplify right side
436,663.62x = 79,333,395,334.31 - Step 5: Solve for x
x = 79,333,395,334.31/436,663.62 - Step 6: Final answer
x = 181,680.80
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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.