Finding the Fourth Proportional to 764,131.80, 1,146,197.70 and 409,837.80
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Solution
The fourth proportional to 764,131.80, 1,146,197.70 and 409,837.80 is: 614,756.70
Step by Step Solution
- Step 1: Write the proportion equation
764,131.80 : 1,146,197.70 = 409,837.80 : x - Step 2: Convert to fraction form
764,131.80/1,146,197.70 = 409,837.80/x - Step 3: Cross multiply
764,131.80x = 1,146,197.70 × 409,837.80 - Step 4: Simplify right side
764,131.80x = 469,755,143,733.06 - Step 5: Solve for x
x = 469,755,143,733.06/764,131.80 - Step 6: Final answer
x = 614,756.70
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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.