Finding the Fourth Proportional to 413,163.40, 619,745.10 and 409,226.80
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Solution
The fourth proportional to 413,163.40, 619,745.10 and 409,226.80 is: 613,840.20
Step by Step Solution
- Step 1: Write the proportion equation
413,163.40 : 619,745.10 = 409,226.80 : x - Step 2: Convert to fraction form
413,163.40/619,745.10 = 409,226.80/x - Step 3: Cross multiply
413,163.40x = 619,745.10 × 409,226.80 - Step 4: Simplify right side
413,163.40x = 253,616,304,088.68 - Step 5: Solve for x
x = 253,616,304,088.68/413,163.40 - Step 6: Final answer
x = 613,840.20
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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.