Finding the Fourth Proportional to 1,291,560.12, 1,937,320.70 and 581,086.44
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Solution
The fourth proportional to 1,291,560.12, 1,937,320.70 and 581,086.44 is: 871,620.90
Step by Step Solution
- Step 1: Write the proportion equation
1,291,560.12 : 1,937,320.70 = 581,086.44 : x - Step 2: Convert to fraction form
1,291,560.12/1,937,320.70 = 581,086.44/x - Step 3: Cross multiply
1,291,560.12x = 1,937,320.70 × 581,086.44 - Step 4: Simplify right side
1,291,560.12x = 1,125,750,788,701.31 - Step 5: Solve for x
x = 1,125,750,788,701.31/1,291,560.12 - Step 6: Final answer
x = 871,620.90
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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.