Finding the Fourth Proportional to 1,581,617.70, 2,372,426.55 and 728,687.70
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Solution
The fourth proportional to 1,581,617.70, 2,372,426.55 and 728,687.70 is: 1,093,031.55
Step by Step Solution
- Step 1: Write the proportion equation
1,581,617.70 : 2,372,426.55 = 728,687.70 : x - Step 2: Convert to fraction form
1,581,617.70/2,372,426.55 = 728,687.70/x - Step 3: Cross multiply
1,581,617.70x = 2,372,426.55 × 728,687.70 - Step 4: Simplify right side
1,581,617.70x = 1,728,758,046,138.43 - Step 5: Solve for x
x = 1,728,758,046,138.43/1,581,617.70 - Step 6: Final answer
x = 1,093,031.55
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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.