Finding the Fourth Proportional to 409,818.80, 614,072.10 and 259,790.60
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Solution
The fourth proportional to 409,818.80, 614,072.10 and 259,790.60 is: 389,269.99
Step by Step Solution
- Step 1: Write the proportion equation
409,818.80 : 614,072.10 = 259,790.60 : x - Step 2: Convert to fraction form
409,818.80/614,072.10 = 259,790.60/x - Step 3: Cross multiply
409,818.80x = 614,072.10 × 259,790.60 - Step 4: Simplify right side
409,818.80x = 159,530,159,302.26 - Step 5: Solve for x
x = 159,530,159,302.26/409,818.80 - Step 6: Final answer
x = 389,269.99
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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.