Finding the Fourth Proportional to 1,355,489.48, 2,031,912.26 and 645,326.84
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Solution
The fourth proportional to 1,355,489.48, 2,031,912.26 and 645,326.84 is: 967,360.90
Step by Step Solution
- Step 1: Write the proportion equation
1,355,489.48 : 2,031,912.26 = 645,326.84 : x - Step 2: Convert to fraction form
1,355,489.48/2,031,912.26 = 645,326.84/x - Step 3: Cross multiply
1,355,489.48x = 2,031,912.26 × 645,326.84 - Step 4: Simplify right side
1,355,489.48x = 1,311,247,517,903.06 - Step 5: Solve for x
x = 1,311,247,517,903.06/1,355,489.48 - Step 6: Final answer
x = 967,360.90
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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.