Finding the Fourth Proportional to 527,676.24, 728,184.20 and 289,207.12
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Solution
The fourth proportional to 527,676.24, 728,184.20 and 289,207.12 is: 399,100.89
Step by Step Solution
- Step 1: Write the proportion equation
527,676.24 : 728,184.20 = 289,207.12 : x - Step 2: Convert to fraction form
527,676.24/728,184.20 = 289,207.12/x - Step 3: Cross multiply
527,676.24x = 728,184.20 × 289,207.12 - Step 4: Simplify right side
527,676.24x = 210,596,055,311.50 - Step 5: Solve for x
x = 210,596,055,311.50/527,676.24 - Step 6: Final answer
x = 399,100.89
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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.