Finding the Fourth Proportional to 827,603.70, 1,241,405.55 and 661,715.70
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Solution
The fourth proportional to 827,603.70, 1,241,405.55 and 661,715.70 is: 992,573.55
Step by Step Solution
- Step 1: Write the proportion equation
827,603.70 : 1,241,405.55 = 661,715.70 : x - Step 2: Convert to fraction form
827,603.70/1,241,405.55 = 661,715.70/x - Step 3: Cross multiply
827,603.70x = 1,241,405.55 × 661,715.70 - Step 4: Simplify right side
827,603.70x = 821,457,542,502.14 - Step 5: Solve for x
x = 821,457,542,502.14/827,603.70 - Step 6: Final answer
x = 992,573.55
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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.