Finding the Fourth Proportional to 489,540.36, 730,242.39 and 481,420.44
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Solution
The fourth proportional to 489,540.36, 730,242.39 and 481,420.44 is: 718,129.99
Step by Step Solution
- Step 1: Write the proportion equation
489,540.36 : 730,242.39 = 481,420.44 : x - Step 2: Convert to fraction form
489,540.36/730,242.39 = 481,420.44/x - Step 3: Cross multiply
489,540.36x = 730,242.39 × 481,420.44 - Step 4: Simplify right side
489,540.36x = 351,553,612,700.45 - Step 5: Solve for x
x = 351,553,612,700.45/489,540.36 - Step 6: Final answer
x = 718,129.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.