Finding the Fourth Proportional to 847,932.45, 1,170,211.86 and 485,469.99
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Solution
The fourth proportional to 847,932.45, 1,170,211.86 and 485,469.99 is: 669,985.85
Step by Step Solution
- Step 1: Write the proportion equation
847,932.45 : 1,170,211.86 = 485,469.99 : x - Step 2: Convert to fraction form
847,932.45/1,170,211.86 = 485,469.99/x - Step 3: Cross multiply
847,932.45x = 1,170,211.86 × 485,469.99 - Step 4: Simplify right side
847,932.45x = 568,102,739,972.08 - Step 5: Solve for x
x = 568,102,739,972.08/847,932.45 - Step 6: Final answer
x = 669,985.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.