Finding the Fourth Proportional to 798,625.20, 1,197,937.80 and 266,163.60
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Solution
The fourth proportional to 798,625.20, 1,197,937.80 and 266,163.60 is: 399,245.40
Step by Step Solution
- Step 1: Write the proportion equation
798,625.20 : 1,197,937.80 = 266,163.60 : x - Step 2: Convert to fraction form
798,625.20/1,197,937.80 = 266,163.60/x - Step 3: Cross multiply
798,625.20x = 1,197,937.80 × 266,163.60 - Step 4: Simplify right side
798,625.20x = 318,847,437,424.08 - Step 5: Solve for x
x = 318,847,437,424.08/798,625.20 - Step 6: Final answer
x = 399,245.40
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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.