Finding the Fourth Proportional to 467,669.26, 644,953.17 and 306,465.76
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Solution
The fourth proportional to 467,669.26, 644,953.17 and 306,465.76 is: 422,640.70
Step by Step Solution
- Step 1: Write the proportion equation
467,669.26 : 644,953.17 = 306,465.76 : x - Step 2: Convert to fraction form
467,669.26/644,953.17 = 306,465.76/x - Step 3: Cross multiply
467,669.26x = 644,953.17 × 306,465.76 - Step 4: Simplify right side
467,669.26x = 197,656,061,796.08 - Step 5: Solve for x
x = 197,656,061,796.08/467,669.26 - Step 6: Final answer
x = 422,640.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.