Finding the Fourth Proportional to 816,627.48, 1,224,938.49 and 209,415.13
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Solution
The fourth proportional to 816,627.48, 1,224,938.49 and 209,415.13 is: 314,121.99
Step by Step Solution
- Step 1: Write the proportion equation
816,627.48 : 1,224,938.49 = 209,415.13 : x - Step 2: Convert to fraction form
816,627.48/1,224,938.49 = 209,415.13/x - Step 3: Cross multiply
816,627.48x = 1,224,938.49 × 209,415.13 - Step 4: Simplify right side
816,627.48x = 256,520,653,125.35 - Step 5: Solve for x
x = 256,520,653,125.35/816,627.48 - Step 6: Final answer
x = 314,121.99
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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.