Finding the Fourth Proportional to 1,311,720.53, 1,963,136.55 and 806,601.44
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Solution
The fourth proportional to 1,311,720.53, 1,963,136.55 and 806,601.44 is: 1,207,169.32
Step by Step Solution
- Step 1: Write the proportion equation
1,311,720.53 : 1,963,136.55 = 806,601.44 : x - Step 2: Convert to fraction form
1,311,720.53/1,963,136.55 = 806,601.44/x - Step 3: Cross multiply
1,311,720.53x = 1,963,136.55 × 806,601.44 - Step 4: Simplify right side
1,311,720.53x = 1,583,468,776,079.23 - Step 5: Solve for x
x = 1,583,468,776,079.23/1,311,720.53 - Step 6: Final answer
x = 1,207,169.32
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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.