Finding the Fourth Proportional to 642,581.57, 886,860.26 and 410,108.81
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Solution
The fourth proportional to 642,581.57, 886,860.26 and 410,108.81 is: 566,012.50
Step by Step Solution
- Step 1: Write the proportion equation
642,581.57 : 886,860.26 = 410,108.81 : x - Step 2: Convert to fraction form
642,581.57/886,860.26 = 410,108.81/x - Step 3: Cross multiply
642,581.57x = 886,860.26 × 410,108.81 - Step 4: Simplify right side
642,581.57x = 363,709,199,380.05 - Step 5: Solve for x
x = 363,709,199,380.05/642,581.57 - Step 6: Final answer
x = 566,012.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.