Finding the Fourth Proportional to 488,408.19, 732,021.80 and 251,621.70
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Solution
The fourth proportional to 488,408.19, 732,021.80 and 251,621.70 is: 377,128.34
Step by Step Solution
- Step 1: Write the proportion equation
488,408.19 : 732,021.80 = 251,621.70 : x - Step 2: Convert to fraction form
488,408.19/732,021.80 = 251,621.70/x - Step 3: Cross multiply
488,408.19x = 732,021.80 × 251,621.70 - Step 4: Simplify right side
488,408.19x = 184,192,568,494.95 - Step 5: Solve for x
x = 184,192,568,494.95/488,408.19 - Step 6: Final answer
x = 377,128.34
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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.