Finding the Fourth Proportional to 791,174.36, 1,186,314.42 and 311,550.68
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Solution
The fourth proportional to 791,174.36, 1,186,314.42 and 311,550.68 is: 467,149.95
Step by Step Solution
- Step 1: Write the proportion equation
791,174.36 : 1,186,314.42 = 311,550.68 : x - Step 2: Convert to fraction form
791,174.36/1,186,314.42 = 311,550.68/x - Step 3: Cross multiply
791,174.36x = 1,186,314.42 × 311,550.68 - Step 4: Simplify right side
791,174.36x = 369,597,064,244.81 - Step 5: Solve for x
x = 369,597,064,244.81/791,174.36 - Step 6: Final answer
x = 467,149.95
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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.