Finding the Fourth Proportional to 1,278,382.26, 1,918,428.75 and 530,428.26
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Solution
The fourth proportional to 1,278,382.26, 1,918,428.75 and 530,428.26 is: 795,997.30
Step by Step Solution
- Step 1: Write the proportion equation
1,278,382.26 : 1,918,428.75 = 530,428.26 : x - Step 2: Convert to fraction form
1,278,382.26/1,918,428.75 = 530,428.26/x - Step 3: Cross multiply
1,278,382.26x = 1,918,428.75 × 530,428.26 - Step 4: Simplify right side
1,278,382.26x = 1,017,588,823,796.48 - Step 5: Solve for x
x = 1,017,588,823,796.48/1,278,382.26 - Step 6: Final answer
x = 795,997.30
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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.