Finding the Fourth Proportional to 512,916.87, 768,687.51 and 399,202.02
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Solution
The fourth proportional to 512,916.87, 768,687.51 and 399,202.02 is: 598,267.72
Step by Step Solution
- Step 1: Write the proportion equation
512,916.87 : 768,687.51 = 399,202.02 : x - Step 2: Convert to fraction form
512,916.87/768,687.51 = 399,202.02/x - Step 3: Cross multiply
512,916.87x = 768,687.51 × 399,202.02 - Step 4: Simplify right side
512,916.87x = 306,861,606,740.77 - Step 5: Solve for x
x = 306,861,606,740.77/512,916.87 - Step 6: Final answer
x = 598,267.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.