Finding the Fourth Proportional to 827,316.28, 1,240,395.49 and 422,633.80
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Solution
The fourth proportional to 827,316.28, 1,240,395.49 and 422,633.80 is: 633,654.95
Step by Step Solution
- Step 1: Write the proportion equation
827,316.28 : 1,240,395.49 = 422,633.80 : x - Step 2: Convert to fraction form
827,316.28/1,240,395.49 = 422,633.80/x - Step 3: Cross multiply
827,316.28x = 1,240,395.49 × 422,633.80 - Step 4: Simplify right side
827,316.28x = 524,233,059,441.56 - Step 5: Solve for x
x = 524,233,059,441.56/827,316.28 - Step 6: Final answer
x = 633,654.95
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1.5x scale
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.