Finding the Fourth Proportional to 827,163.60, 1,241,911.80 and 512,235.60
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Solution
The fourth proportional to 827,163.60, 1,241,911.80 and 512,235.60 is: 769,075.71
Step by Step Solution
- Step 1: Write the proportion equation
827,163.60 : 1,241,911.80 = 512,235.60 : x - Step 2: Convert to fraction form
827,163.60/1,241,911.80 = 512,235.60/x - Step 3: Cross multiply
827,163.60x = 1,241,911.80 × 512,235.60 - Step 4: Simplify right side
827,163.60x = 636,151,436,020.08 - Step 5: Solve for x
x = 636,151,436,020.08/827,163.60 - Step 6: Final answer
x = 769,075.71
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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.