Finding the Fourth Proportional to 3,258,938.40, 4,890,740.40 and 1,837,485.60
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Solution
The fourth proportional to 3,258,938.40, 4,890,740.40 and 1,837,485.60 is: 2,757,543.70
Step by Step Solution
- Step 1: Write the proportion equation
3,258,938.40 : 4,890,740.40 = 1,837,485.60 : x - Step 2: Convert to fraction form
3,258,938.40/4,890,740.40 = 1,837,485.60/x - Step 3: Cross multiply
3,258,938.40x = 4,890,740.40 × 1,837,485.60 - Step 4: Simplify right side
3,258,938.40x = 8,986,665,058,338.24 - Step 5: Solve for x
x = 8,986,665,058,338.24/3,258,938.40 - Step 6: Final answer
x = 2,757,543.70
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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.