Finding the Fourth Proportional to 641,791.24, 885,638.20 and 351,347.20
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Solution
The fourth proportional to 641,791.24, 885,638.20 and 351,347.20 is: 484,840.68
Step by Step Solution
- Step 1: Write the proportion equation
641,791.24 : 885,638.20 = 351,347.20 : x - Step 2: Convert to fraction form
641,791.24/885,638.20 = 351,347.20/x - Step 3: Cross multiply
641,791.24x = 885,638.20 × 351,347.20 - Step 4: Simplify right side
641,791.24x = 311,166,501,783.04 - Step 5: Solve for x
x = 311,166,501,783.04/641,791.24 - Step 6: Final answer
x = 484,840.68
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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.