Finding the Fourth Proportional to 490,515.95, 677,096.99 and 286,633.14
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Solution
The fourth proportional to 490,515.95, 677,096.99 and 286,633.14 is: 395,661.83
Step by Step Solution
- Step 1: Write the proportion equation
490,515.95 : 677,096.99 = 286,633.14 : x - Step 2: Convert to fraction form
490,515.95/677,096.99 = 286,633.14/x - Step 3: Cross multiply
490,515.95x = 677,096.99 × 286,633.14 - Step 4: Simplify right side
490,515.95x = 194,078,434,895.08 - Step 5: Solve for x
x = 194,078,434,895.08/490,515.95 - Step 6: Final answer
x = 395,661.83
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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.