Finding the Fourth Proportional to 410,879.40, 616,319.10 and 374,137.80
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Solution
The fourth proportional to 410,879.40, 616,319.10 and 374,137.80 is: 561,206.70
Step by Step Solution
- Step 1: Write the proportion equation
410,879.40 : 616,319.10 = 374,137.80 : x - Step 2: Convert to fraction form
410,879.40/616,319.10 = 374,137.80/x - Step 3: Cross multiply
410,879.40x = 616,319.10 × 374,137.80 - Step 4: Simplify right side
410,879.40x = 230,588,272,171.98 - Step 5: Solve for x
x = 230,588,272,171.98/410,879.40 - Step 6: Final answer
x = 561,206.70
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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.