Finding the Fourth Proportional to 664,221.40, 996,332.10 and 264,923.80
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Solution
The fourth proportional to 664,221.40, 996,332.10 and 264,923.80 is: 397,385.70
Step by Step Solution
- Step 1: Write the proportion equation
664,221.40 : 996,332.10 = 264,923.80 : x - Step 2: Convert to fraction form
664,221.40/996,332.10 = 264,923.80/x - Step 3: Cross multiply
664,221.40x = 996,332.10 × 264,923.80 - Step 4: Simplify right side
664,221.40x = 263,952,085,993.98 - Step 5: Solve for x
x = 263,952,085,993.98/664,221.40 - Step 6: Final answer
x = 397,385.70
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Similar ratio
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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.