Finding the Fourth Proportional to 4,180,205.40, 6,268,752.90 and 1,655,338.20
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Solution
The fourth proportional to 4,180,205.40, 6,268,752.90 and 1,655,338.20 is: 2,482,391.45
Step by Step Solution
- Step 1: Write the proportion equation
4,180,205.40 : 6,268,752.90 = 1,655,338.20 : x - Step 2: Convert to fraction form
4,180,205.40/6,268,752.90 = 1,655,338.20/x - Step 3: Cross multiply
4,180,205.40x = 6,268,752.90 × 1,655,338.20 - Step 4: Simplify right side
4,180,205.40x = 10,376,906,141,730.78 - Step 5: Solve for x
x = 10,376,906,141,730.78/4,180,205.40 - Step 6: Final answer
x = 2,482,391.45
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1.5x scale
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.