Finding the Fourth Proportional to 979,125.76, 1,351,122.69 and 543,566.49
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Solution
The fourth proportional to 979,125.76, 1,351,122.69 and 543,566.49 is: 750,082.42
Step by Step Solution
- Step 1: Write the proportion equation
979,125.76 : 1,351,122.69 = 543,566.49 : x - Step 2: Convert to fraction form
979,125.76/1,351,122.69 = 543,566.49/x - Step 3: Cross multiply
979,125.76x = 1,351,122.69 × 543,566.49 - Step 4: Simplify right side
979,125.76x = 734,425,018,162.66 - Step 5: Solve for x
x = 734,425,018,162.66/979,125.76 - Step 6: Final answer
x = 750,082.42
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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.