Finding the Fourth Proportional to 858,457.92, 1,288,534.80 and 644,481.84
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Solution
The fourth proportional to 858,457.92, 1,288,534.80 and 644,481.84 is: 967,359.33
Step by Step Solution
- Step 1: Write the proportion equation
858,457.92 : 1,288,534.80 = 644,481.84 : x - Step 2: Convert to fraction form
858,457.92/1,288,534.80 = 644,481.84/x - Step 3: Cross multiply
858,457.92x = 1,288,534.80 × 644,481.84 - Step 4: Simplify right side
858,457.92x = 830,437,278,808.03 - Step 5: Solve for x
x = 830,437,278,808.03/858,457.92 - Step 6: Final answer
x = 967,359.33
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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.