Finding the Fourth Proportional to 1,330,703.70, 1,996,347.15 and 657,107.70
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Solution
The fourth proportional to 1,330,703.70, 1,996,347.15 and 657,107.70 is: 985,805.54
Step by Step Solution
- Step 1: Write the proportion equation
1,330,703.70 : 1,996,347.15 = 657,107.70 : x - Step 2: Convert to fraction form
1,330,703.70/1,996,347.15 = 657,107.70/x - Step 3: Cross multiply
1,330,703.70x = 1,996,347.15 × 657,107.70 - Step 4: Simplify right side
1,330,703.70x = 1,311,815,084,138.06 - Step 5: Solve for x
x = 1,311,815,084,138.06/1,330,703.70 - Step 6: Final answer
x = 985,805.54
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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.