Finding the Fourth Proportional to 1,676,723.40, 2,514,890.70 and 478,830.60
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Solution
The fourth proportional to 1,676,723.40, 2,514,890.70 and 478,830.60 is: 718,190.38
Step by Step Solution
- Step 1: Write the proportion equation
1,676,723.40 : 2,514,890.70 = 478,830.60 : x - Step 2: Convert to fraction form
1,676,723.40/2,514,890.70 = 478,830.60/x - Step 3: Cross multiply
1,676,723.40x = 2,514,890.70 × 478,830.60 - Step 4: Simplify right side
1,676,723.40x = 1,204,206,622,815.42 - Step 5: Solve for x
x = 1,204,206,622,815.42/1,676,723.40 - Step 6: Final answer
x = 718,190.38
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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.