Finding the Fourth Proportional to 3,208,635.99, 4,813,129.29 and 812,501.40
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Solution
The fourth proportional to 3,208,635.99, 4,813,129.29 and 812,501.40 is: 1,218,796.49
Step by Step Solution
- Step 1: Write the proportion equation
3,208,635.99 : 4,813,129.29 = 812,501.40 : x - Step 2: Convert to fraction form
3,208,635.99/4,813,129.29 = 812,501.40/x - Step 3: Cross multiply
3,208,635.99x = 4,813,129.29 × 812,501.40 - Step 4: Simplify right side
3,208,635.99x = 3,910,674,286,506.01 - Step 5: Solve for x
x = 3,910,674,286,506.01/3,208,635.99 - Step 6: Final answer
x = 1,218,796.49
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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.