Finding the Fourth Proportional to 1,202,939.34, 1,659,845.30 and 686,457.42
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Solution
The fourth proportional to 1,202,939.34, 1,659,845.30 and 686,457.42 is: 947,190.84
Step by Step Solution
- Step 1: Write the proportion equation
1,202,939.34 : 1,659,845.30 = 686,457.42 : x - Step 2: Convert to fraction form
1,202,939.34/1,659,845.30 = 686,457.42/x - Step 3: Cross multiply
1,202,939.34x = 1,659,845.30 × 686,457.42 - Step 4: Simplify right side
1,202,939.34x = 1,139,413,122,237.13 - Step 5: Solve for x
x = 1,139,413,122,237.13/1,202,939.34 - Step 6: Final answer
x = 947,190.84
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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.