Finding the Fourth Proportional to 3,190,403.70, 4,785,037.20 and 1,271,153.99
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Solution
The fourth proportional to 3,190,403.70, 4,785,037.20 and 1,271,153.99 is: 1,906,504.54
Step by Step Solution
- Step 1: Write the proportion equation
3,190,403.70 : 4,785,037.20 = 1,271,153.99 : x - Step 2: Convert to fraction form
3,190,403.70/4,785,037.20 = 1,271,153.99/x - Step 3: Cross multiply
3,190,403.70x = 4,785,037.20 × 1,271,153.99 - Step 4: Simplify right side
3,190,403.70x = 6,082,519,141,041.02 - Step 5: Solve for x
x = 6,082,519,141,041.02/3,190,403.70 - Step 6: Final answer
x = 1,906,504.54
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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.