Finding the Fourth Proportional to 1,278,468.54, 1,764,226.62 and 734,220.60
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Solution
The fourth proportional to 1,278,468.54, 1,764,226.62 and 734,220.60 is: 1,013,189.99
Step by Step Solution
- Step 1: Write the proportion equation
1,278,468.54 : 1,764,226.62 = 734,220.60 : x - Step 2: Convert to fraction form
1,278,468.54/1,764,226.62 = 734,220.60/x - Step 3: Cross multiply
1,278,468.54x = 1,764,226.62 × 734,220.60 - Step 4: Simplify right side
1,278,468.54x = 1,295,331,527,472.37 - Step 5: Solve for x
x = 1,295,331,527,472.37/1,278,468.54 - Step 6: Final answer
x = 1,013,189.99
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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.