Finding the Fourth Proportional to 643,700.76, 966,186.75 and 483,218.70
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Solution
The fourth proportional to 643,700.76, 966,186.75 and 483,218.70 is: 725,305.19
Step by Step Solution
- Step 1: Write the proportion equation
643,700.76 : 966,186.75 = 483,218.70 : x - Step 2: Convert to fraction form
643,700.76/966,186.75 = 483,218.70/x - Step 3: Cross multiply
643,700.76x = 966,186.75 × 483,218.70 - Step 4: Simplify right side
643,700.76x = 466,879,502,876.13 - Step 5: Solve for x
x = 466,879,502,876.13/643,700.76 - Step 6: Final answer
x = 725,305.19
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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.