Finding the Fourth Proportional to 798,272.10, 1,197,408.15 and 758,906.10
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Solution
The fourth proportional to 798,272.10, 1,197,408.15 and 758,906.10 is: 1,138,359.15
Step by Step Solution
- Step 1: Write the proportion equation
798,272.10 : 1,197,408.15 = 758,906.10 : x - Step 2: Convert to fraction form
798,272.10/1,197,408.15 = 758,906.10/x - Step 3: Cross multiply
798,272.10x = 1,197,408.15 × 758,906.10 - Step 4: Simplify right side
798,272.10x = 908,720,349,224.72 - Step 5: Solve for x
x = 908,720,349,224.72/798,272.10 - Step 6: Final answer
x = 1,138,359.15
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1.5x scale
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.