Finding the Fourth Proportional to 3,620,928.70, 5,431,393.05 and 1,941,312.70
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Solution
The fourth proportional to 3,620,928.70, 5,431,393.05 and 1,941,312.70 is: 2,911,969.05
Step by Step Solution
- Step 1: Write the proportion equation
3,620,928.70 : 5,431,393.05 = 1,941,312.70 : x - Step 2: Convert to fraction form
3,620,928.70/5,431,393.05 = 1,941,312.70/x - Step 3: Cross multiply
3,620,928.70x = 5,431,393.05 × 1,941,312.70 - Step 4: Simplify right side
3,620,928.70x = 10,544,032,306,656.73 - Step 5: Solve for x
x = 10,544,032,306,656.73/3,620,928.70 - Step 6: Final answer
x = 2,911,969.05
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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.