Finding the Fourth Proportional to 465,794.20, 698,691.30 and 415,055.80
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Solution
The fourth proportional to 465,794.20, 698,691.30 and 415,055.80 is: 622,583.70
Step by Step Solution
- Step 1: Write the proportion equation
465,794.20 : 698,691.30 = 415,055.80 : x - Step 2: Convert to fraction form
465,794.20/698,691.30 = 415,055.80/x - Step 3: Cross multiply
465,794.20x = 698,691.30 × 415,055.80 - Step 4: Simplify right side
465,794.20x = 289,995,876,474.54 - Step 5: Solve for x
x = 289,995,876,474.54/465,794.20 - Step 6: Final answer
x = 622,583.70
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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.