Finding the Fourth Proportional to 790,453.21, 1,090,826.09 and 427,875.96
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Solution
The fourth proportional to 790,453.21, 1,090,826.09 and 427,875.96 is: 590,469.18
Step by Step Solution
- Step 1: Write the proportion equation
790,453.21 : 1,090,826.09 = 427,875.96 : x - Step 2: Convert to fraction form
790,453.21/1,090,826.09 = 427,875.96/x - Step 3: Cross multiply
790,453.21x = 1,090,826.09 × 427,875.96 - Step 4: Simplify right side
790,453.21x = 466,738,260,451.80 - Step 5: Solve for x
x = 466,738,260,451.80/790,453.21 - Step 6: Final answer
x = 590,469.18
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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.