Finding the Fourth Proportional to 804,390.63, 1,206,741.47 and 305,715.75
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Solution
The fourth proportional to 804,390.63, 1,206,741.47 and 305,715.75 is: 458,632.73
Step by Step Solution
- Step 1: Write the proportion equation
804,390.63 : 1,206,741.47 = 305,715.75 : x - Step 2: Convert to fraction form
804,390.63/1,206,741.47 = 305,715.75/x - Step 3: Cross multiply
804,390.63x = 1,206,741.47 × 305,715.75 - Step 4: Simplify right side
804,390.63x = 368,919,872,028.57 - Step 5: Solve for x
x = 368,919,872,028.57/804,390.63 - Step 6: Final answer
x = 458,632.73
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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.