Finding the Fourth Proportional to 835,757.31, 1,153,447.09 and 491,576.81
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Solution
The fourth proportional to 835,757.31, 1,153,447.09 and 491,576.81 is: 678,436.00
Step by Step Solution
- Step 1: Write the proportion equation
835,757.31 : 1,153,447.09 = 491,576.81 : x - Step 2: Convert to fraction form
835,757.31/1,153,447.09 = 491,576.81/x - Step 3: Cross multiply
835,757.31x = 1,153,447.09 × 491,576.81 - Step 4: Simplify right side
835,757.31x = 567,007,842,660.66 - Step 5: Solve for x
x = 567,007,842,660.66/835,757.31 - Step 6: Final answer
x = 678,436.00
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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.