Finding the Fourth Proportional to 755,712.09, 1,135,142.78 and 637,614.09
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Solution
The fourth proportional to 755,712.09, 1,135,142.78 and 637,614.09 is: 957,749.70
Step by Step Solution
- Step 1: Write the proportion equation
755,712.09 : 1,135,142.78 = 637,614.09 : x - Step 2: Convert to fraction form
755,712.09/1,135,142.78 = 637,614.09/x - Step 3: Cross multiply
755,712.09x = 1,135,142.78 × 637,614.09 - Step 4: Simplify right side
755,712.09x = 723,783,027,501.70 - Step 5: Solve for x
x = 723,783,027,501.70/755,712.09 - Step 6: Final answer
x = 957,749.70
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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.