Finding the Fourth Proportional to 862,616.40, 1,294,313.40 and 413,163.60
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Solution
The fourth proportional to 862,616.40, 1,294,313.40 and 413,163.60 is: 619,931.62
Step by Step Solution
- Step 1: Write the proportion equation
862,616.40 : 1,294,313.40 = 413,163.60 : x - Step 2: Convert to fraction form
862,616.40/1,294,313.40 = 413,163.60/x - Step 3: Cross multiply
862,616.40x = 1,294,313.40 × 413,163.60 - Step 4: Simplify right side
862,616.40x = 534,763,183,872.24 - Step 5: Solve for x
x = 534,763,183,872.24/862,616.40 - Step 6: Final answer
x = 619,931.62
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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.