Finding the Fourth Proportional to 668,745.80, 922,861.50 and 366,939.80
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Solution
The fourth proportional to 668,745.80, 922,861.50 and 366,939.80 is: 506,372.70
Step by Step Solution
- Step 1: Write the proportion equation
668,745.80 : 922,861.50 = 366,939.80 : x - Step 2: Convert to fraction form
668,745.80/922,861.50 = 366,939.80/x - Step 3: Cross multiply
668,745.80x = 922,861.50 × 366,939.80 - Step 4: Simplify right side
668,745.80x = 338,634,614,237.70 - Step 5: Solve for x
x = 338,634,614,237.70/668,745.80 - Step 6: Final answer
x = 506,372.70
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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.