Finding the Fourth Proportional to 603,677.80, 905,516.70 and 288,749.80
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Solution
The fourth proportional to 603,677.80, 905,516.70 and 288,749.80 is: 433,124.70
Step by Step Solution
- Step 1: Write the proportion equation
603,677.80 : 905,516.70 = 288,749.80 : x - Step 2: Convert to fraction form
603,677.80/905,516.70 = 288,749.80/x - Step 3: Cross multiply
603,677.80x = 905,516.70 × 288,749.80 - Step 4: Simplify right side
603,677.80x = 261,467,766,021.66 - Step 5: Solve for x
x = 261,467,766,021.66/603,677.80 - Step 6: Final answer
x = 433,124.70
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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.