Finding the Fourth Proportional to 756,938.19, 1,135,407.30 and 357,619.14
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Solution
The fourth proportional to 756,938.19, 1,135,407.30 and 357,619.14 is: 536,428.72
Step by Step Solution
- Step 1: Write the proportion equation
756,938.19 : 1,135,407.30 = 357,619.14 : x - Step 2: Convert to fraction form
756,938.19/1,135,407.30 = 357,619.14/x - Step 3: Cross multiply
756,938.19x = 1,135,407.30 × 357,619.14 - Step 4: Simplify right side
756,938.19x = 406,043,382,175.72 - Step 5: Solve for x
x = 406,043,382,175.72/756,938.19 - Step 6: Final answer
x = 536,428.72
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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.