Finding the Fourth Proportional to 755,817.05, 1,133,718.53 and 306,431.10
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Solution
The fourth proportional to 755,817.05, 1,133,718.53 and 306,431.10 is: 459,643.79
Step by Step Solution
- Step 1: Write the proportion equation
755,817.05 : 1,133,718.53 = 306,431.10 : x - Step 2: Convert to fraction form
755,817.05/1,133,718.53 = 306,431.10/x - Step 3: Cross multiply
755,817.05x = 1,133,718.53 × 306,431.10 - Step 4: Simplify right side
755,817.05x = 347,406,614,706.13 - Step 5: Solve for x
x = 347,406,614,706.13/755,817.05 - Step 6: Final answer
x = 459,643.79
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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.