Finding the Fourth Proportional to 612,318.36, 918,161.11 and 275,070.66
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Solution
The fourth proportional to 612,318.36, 918,161.11 and 275,070.66 is: 412,463.84
Step by Step Solution
- Step 1: Write the proportion equation
612,318.36 : 918,161.11 = 275,070.66 : x - Step 2: Convert to fraction form
612,318.36/918,161.11 = 275,070.66/x - Step 3: Cross multiply
612,318.36x = 918,161.11 × 275,070.66 - Step 4: Simplify right side
612,318.36x = 252,559,182,514.03 - Step 5: Solve for x
x = 252,559,182,514.03/612,318.36 - Step 6: Final answer
x = 412,463.84
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1.5x scale
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.