Finding the Fourth Proportional to 1,320,082.53, 1,821,401.66 and 747,122.70
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Solution
The fourth proportional to 1,320,082.53, 1,821,401.66 and 747,122.70 is: 1,030,852.61
Step by Step Solution
- Step 1: Write the proportion equation
1,320,082.53 : 1,821,401.66 = 747,122.70 : x - Step 2: Convert to fraction form
1,320,082.53/1,821,401.66 = 747,122.70/x - Step 3: Cross multiply
1,320,082.53x = 1,821,401.66 × 747,122.70 - Step 4: Simplify right side
1,320,082.53x = 1,360,810,530,557.19 - Step 5: Solve for x
x = 1,360,810,530,557.19/1,320,082.53 - Step 6: Final answer
x = 1,030,852.61
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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.