Finding the Fourth Proportional to 722,761.68, 1,084,126.84 and 249,431.12
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Solution
The fourth proportional to 722,761.68, 1,084,126.84 and 249,431.12 is: 374,141.27
Step by Step Solution
- Step 1: Write the proportion equation
722,761.68 : 1,084,126.84 = 249,431.12 : x - Step 2: Convert to fraction form
722,761.68/1,084,126.84 = 249,431.12/x - Step 3: Cross multiply
722,761.68x = 1,084,126.84 × 249,431.12 - Step 4: Simplify right side
722,761.68x = 270,414,971,923.26 - Step 5: Solve for x
x = 270,414,971,923.26/722,761.68 - Step 6: Final answer
x = 374,141.27
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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.