Finding the Fourth Proportional to 1,320,135.42, 1,821,738.15 and 716,510.46
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Solution
The fourth proportional to 1,320,135.42, 1,821,738.15 and 716,510.46 is: 988,757.99
Step by Step Solution
- Step 1: Write the proportion equation
1,320,135.42 : 1,821,738.15 = 716,510.46 : x - Step 2: Convert to fraction form
1,320,135.42/1,821,738.15 = 716,510.46/x - Step 3: Cross multiply
1,320,135.42x = 1,821,738.15 × 716,510.46 - Step 4: Simplify right side
1,320,135.42x = 1,305,294,439,856.05 - Step 5: Solve for x
x = 1,305,294,439,856.05/1,320,135.42 - Step 6: Final answer
x = 988,757.99
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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.