Finding the Fourth Proportional to 1,511,223.20, 2,265,782.64 and 669,318.56
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Solution
The fourth proportional to 1,511,223.20, 2,265,782.64 and 669,318.56 is: 1,003,511.84
Step by Step Solution
- Step 1: Write the proportion equation
1,511,223.20 : 2,265,782.64 = 669,318.56 : x - Step 2: Convert to fraction form
1,511,223.20/2,265,782.64 = 669,318.56/x - Step 3: Cross multiply
1,511,223.20x = 2,265,782.64 × 669,318.56 - Step 4: Simplify right side
1,511,223.20x = 1,516,530,373,877.80 - Step 5: Solve for x
x = 1,516,530,373,877.80/1,511,223.20 - Step 6: Final answer
x = 1,003,511.84
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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.