Finding the Fourth Proportional to 747,580.70, 1,121,542.78 and 215,106.14
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Solution
The fourth proportional to 747,580.70, 1,121,542.78 and 215,106.14 is: 322,708.62
Step by Step Solution
- Step 1: Write the proportion equation
747,580.70 : 1,121,542.78 = 215,106.14 : x - Step 2: Convert to fraction form
747,580.70/1,121,542.78 = 215,106.14/x - Step 3: Cross multiply
747,580.70x = 1,121,542.78 × 215,106.14 - Step 4: Simplify right side
747,580.70x = 241,250,738,250.67 - Step 5: Solve for x
x = 241,250,738,250.67/747,580.70 - Step 6: Final answer
x = 322,708.62
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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.