Finding the Fourth Proportional to 521,701.80, 782,589.15 and 206,117.70
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Solution
The fourth proportional to 521,701.80, 782,589.15 and 206,117.70 is: 309,190.95
Step by Step Solution
- Step 1: Write the proportion equation
521,701.80 : 782,589.15 = 206,117.70 : x - Step 2: Convert to fraction form
521,701.80/782,589.15 = 206,117.70/x - Step 3: Cross multiply
521,701.80x = 782,589.15 × 206,117.70 - Step 4: Simplify right side
521,701.80x = 161,305,475,642.96 - Step 5: Solve for x
x = 161,305,475,642.96/521,701.80 - Step 6: Final answer
x = 309,190.95
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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.