Finding the Fourth Proportional to 489,293.40, 733,940.12 and 414,643.80
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Solution
The fourth proportional to 489,293.40, 733,940.12 and 414,643.80 is: 621,965.72
Step by Step Solution
- Step 1: Write the proportion equation
489,293.40 : 733,940.12 = 414,643.80 : x - Step 2: Convert to fraction form
489,293.40/733,940.12 = 414,643.80/x - Step 3: Cross multiply
489,293.40x = 733,940.12 × 414,643.80 - Step 4: Simplify right side
489,293.40x = 304,323,720,329.26 - Step 5: Solve for x
x = 304,323,720,329.26/489,293.40 - Step 6: Final answer
x = 621,965.72
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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.