Finding the Fourth Proportional to 734,794.80, 1,013,960.84 and 412,442.62
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Solution
The fourth proportional to 734,794.80, 1,013,960.84 and 412,442.62 is: 569,139.39
Step by Step Solution
- Step 1: Write the proportion equation
734,794.80 : 1,013,960.84 = 412,442.62 : x - Step 2: Convert to fraction form
734,794.80/1,013,960.84 = 412,442.62/x - Step 3: Cross multiply
734,794.80x = 1,013,960.84 × 412,442.62 - Step 4: Simplify right side
734,794.80x = 418,200,663,923.21 - Step 5: Solve for x
x = 418,200,663,923.21/734,794.80 - Step 6: Final answer
x = 569,139.39
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1.5x scale
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.