Finding the Fourth Proportional to 664,649.40, 996,974.10 and 265,351.80
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Solution
The fourth proportional to 664,649.40, 996,974.10 and 265,351.80 is: 398,027.70
Step by Step Solution
- Step 1: Write the proportion equation
664,649.40 : 996,974.10 = 265,351.80 : x - Step 2: Convert to fraction form
664,649.40/996,974.10 = 265,351.80/x - Step 3: Cross multiply
664,649.40x = 996,974.10 × 265,351.80 - Step 4: Simplify right side
664,649.40x = 264,548,871,988.38 - Step 5: Solve for x
x = 264,548,871,988.38/664,649.40 - Step 6: Final answer
x = 398,027.70
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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.