Finding the Fourth Proportional to 515,601.63, 711,535.10 and 289,251.99
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Solution
The fourth proportional to 515,601.63, 711,535.10 and 289,251.99 is: 399,170.47
Step by Step Solution
- Step 1: Write the proportion equation
515,601.63 : 711,535.10 = 289,251.99 : x - Step 2: Convert to fraction form
515,601.63/711,535.10 = 289,251.99/x - Step 3: Cross multiply
515,601.63x = 711,535.10 × 289,251.99 - Step 4: Simplify right side
515,601.63x = 205,812,943,629.85 - Step 5: Solve for x
x = 205,812,943,629.85/515,601.63 - Step 6: Final answer
x = 399,170.47
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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.