Finding the Fourth Proportional to 3,759,330.12, 5,638,995.18 and 919,408.56
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Solution
The fourth proportional to 3,759,330.12, 5,638,995.18 and 919,408.56 is: 1,379,112.84
Step by Step Solution
- Step 1: Write the proportion equation
3,759,330.12 : 5,638,995.18 = 919,408.56 : x - Step 2: Convert to fraction form
3,759,330.12/5,638,995.18 = 919,408.56/x - Step 3: Cross multiply
3,759,330.12x = 5,638,995.18 × 919,408.56 - Step 4: Simplify right side
3,759,330.12x = 5,184,540,438,290.74 - Step 5: Solve for x
x = 5,184,540,438,290.74/3,759,330.12 - Step 6: Final answer
x = 1,379,112.84
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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.