Finding the Fourth Proportional to 1,211,797.63, 1,672,204.68 and 667,903.49
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Solution
The fourth proportional to 1,211,797.63, 1,672,204.68 and 667,903.49 is: 921,664.90
Step by Step Solution
- Step 1: Write the proportion equation
1,211,797.63 : 1,672,204.68 = 667,903.49 : x - Step 2: Convert to fraction form
1,211,797.63/1,672,204.68 = 667,903.49/x - Step 3: Cross multiply
1,211,797.63x = 1,672,204.68 × 667,903.49 - Step 4: Simplify right side
1,211,797.63x = 1,116,871,333,405.31 - Step 5: Solve for x
x = 1,116,871,333,405.31/1,211,797.63 - Step 6: Final answer
x = 921,664.90
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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.