Finding the Fourth Proportional to 436,661.62, 654,992.39 and 121,118.54
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Solution
The fourth proportional to 436,661.62, 654,992.39 and 121,118.54 is: 181,677.80
Step by Step Solution
- Step 1: Write the proportion equation
436,661.62 : 654,992.39 = 121,118.54 : x - Step 2: Convert to fraction form
436,661.62/654,992.39 = 121,118.54/x - Step 3: Cross multiply
436,661.62x = 654,992.39 × 121,118.54 - Step 4: Simplify right side
436,661.62x = 79,331,721,987.91 - Step 5: Solve for x
x = 79,331,721,987.91/436,661.62 - Step 6: Final answer
x = 181,677.80
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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.