Finding the Fourth Proportional to 3,138,226.30, 4,707,339.46 and 1,543,903.30
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Solution
The fourth proportional to 3,138,226.30, 4,707,339.46 and 1,543,903.30 is: 2,315,854.95
Step by Step Solution
- Step 1: Write the proportion equation
3,138,226.30 : 4,707,339.46 = 1,543,903.30 : x - Step 2: Convert to fraction form
3,138,226.30/4,707,339.46 = 1,543,903.30/x - Step 3: Cross multiply
3,138,226.30x = 4,707,339.46 × 1,543,903.30 - Step 4: Simplify right side
3,138,226.30x = 7,267,676,926,514.22 - Step 5: Solve for x
x = 7,267,676,926,514.22/3,138,226.30 - Step 6: Final answer
x = 2,315,854.95
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Double scale
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Similar ratio
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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.