Finding the Fourth Proportional to 957,742.52, 1,321,744.23 and 528,021.99
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Solution
The fourth proportional to 957,742.52, 1,321,744.23 and 528,021.99 is: 728,703.18
Step by Step Solution
- Step 1: Write the proportion equation
957,742.52 : 1,321,744.23 = 528,021.99 : x - Step 2: Convert to fraction form
957,742.52/1,321,744.23 = 528,021.99/x - Step 3: Cross multiply
957,742.52x = 1,321,744.23 × 528,021.99 - Step 4: Simplify right side
957,742.52x = 697,910,018,595.62 - Step 5: Solve for x
x = 697,910,018,595.62/957,742.52 - Step 6: Final answer
x = 728,703.18
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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.