Finding the Fourth Proportional to 547,555.20, 755,618.19 and 305,841.18
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Solution
The fourth proportional to 547,555.20, 755,618.19 and 305,841.18 is: 422,056.37
Step by Step Solution
- Step 1: Write the proportion equation
547,555.20 : 755,618.19 = 305,841.18 : x - Step 2: Convert to fraction form
547,555.20/755,618.19 = 305,841.18/x - Step 3: Cross multiply
547,555.20x = 755,618.19 × 305,841.18 - Step 4: Simplify right side
547,555.20x = 231,099,158,859.06 - Step 5: Solve for x
x = 231,099,158,859.06/547,555.20 - Step 6: Final answer
x = 422,056.37
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1.5x scale
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.