Finding the Fourth Proportional to 423,937.80, 635,906.70 and 330,625.80
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Solution
The fourth proportional to 423,937.80, 635,906.70 and 330,625.80 is: 495,938.70
Step by Step Solution
- Step 1: Write the proportion equation
423,937.80 : 635,906.70 = 330,625.80 : x - Step 2: Convert to fraction form
423,937.80/635,906.70 = 330,625.80/x - Step 3: Cross multiply
423,937.80x = 635,906.70 × 330,625.80 - Step 4: Simplify right side
423,937.80x = 210,247,161,412.86 - Step 5: Solve for x
x = 210,247,161,412.86/423,937.80 - Step 6: Final answer
x = 495,938.70
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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.