Finding the Fourth Proportional to 436,657.63, 654,986.39 and 121,114.54
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Solution
The fourth proportional to 436,657.63, 654,986.39 and 121,114.54 is: 181,671.79
Step by Step Solution
- Step 1: Write the proportion equation
436,657.63 : 654,986.39 = 121,114.54 : x - Step 2: Convert to fraction form
436,657.63/654,986.39 = 121,114.54/x - Step 3: Cross multiply
436,657.63x = 654,986.39 × 121,114.54 - Step 4: Simplify right side
436,657.63x = 79,328,372,056.18 - Step 5: Solve for x
x = 79,328,372,056.18/436,657.63 - Step 6: Final answer
x = 181,671.79
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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.