Finding the Fourth Proportional to 3,985,609.77, 5,979,363.27 and 1,289,934.99
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Solution
The fourth proportional to 3,985,609.77, 5,979,363.27 and 1,289,934.99 is: 1,935,209.50
Step by Step Solution
- Step 1: Write the proportion equation
3,985,609.77 : 5,979,363.27 = 1,289,934.99 : x - Step 2: Convert to fraction form
3,985,609.77/5,979,363.27 = 1,289,934.99/x - Step 3: Cross multiply
3,985,609.77x = 5,979,363.27 × 1,289,934.99 - Step 4: Simplify right side
3,985,609.77x = 7,712,989,899,893.82 - Step 5: Solve for x
x = 7,712,989,899,893.82/3,985,609.77 - Step 6: Final answer
x = 1,935,209.50
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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.