Finding the Fourth Proportional to 811,649.75, 1,120,080.50 and 453,953.75
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Solution
The fourth proportional to 811,649.75, 1,120,080.50 and 453,953.75 is: 626,458.32
Step by Step Solution
- Step 1: Write the proportion equation
811,649.75 : 1,120,080.50 = 453,953.75 : x - Step 2: Convert to fraction form
811,649.75/1,120,080.50 = 453,953.75/x - Step 3: Cross multiply
811,649.75x = 1,120,080.50 × 453,953.75 - Step 4: Simplify right side
811,649.75x = 508,464,741,007.11 - Step 5: Solve for x
x = 508,464,741,007.11/811,649.75 - Step 6: Final answer
x = 626,458.32
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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.