Finding the Fourth Proportional to 849,449.40, 1,274,396.28 and 316,975.08
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Solution
The fourth proportional to 849,449.40, 1,274,396.28 and 316,975.08 is: 475,545.53
Step by Step Solution
- Step 1: Write the proportion equation
849,449.40 : 1,274,396.28 = 316,975.08 : x - Step 2: Convert to fraction form
849,449.40/1,274,396.28 = 316,975.08/x - Step 3: Cross multiply
849,449.40x = 1,274,396.28 × 316,975.08 - Step 4: Simplify right side
849,449.40x = 403,951,862,804.70 - Step 5: Solve for x
x = 403,951,862,804.70/849,449.40 - Step 6: Final answer
x = 475,545.53
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1.5x scale
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.