Finding the Fourth Proportional to 2,138,479.68, 3,207,451.77 and 699,042.45
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Solution
The fourth proportional to 2,138,479.68, 3,207,451.77 and 699,042.45 is: 1,048,476.15
Step by Step Solution
- Step 1: Write the proportion equation
2,138,479.68 : 3,207,451.77 = 699,042.45 : x - Step 2: Convert to fraction form
2,138,479.68/3,207,451.77 = 699,042.45/x - Step 3: Cross multiply
2,138,479.68x = 3,207,451.77 × 699,042.45 - Step 4: Simplify right side
2,138,479.68x = 2,242,144,943,557.64 - Step 5: Solve for x
x = 2,242,144,943,557.64/2,138,479.68 - Step 6: Final answer
x = 1,048,476.15
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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.