Finding the Fourth Proportional to 493,589.79, 740,384.69 and 133,760.63
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Solution
The fourth proportional to 493,589.79, 740,384.69 and 133,760.63 is: 200,640.94
Step by Step Solution
- Step 1: Write the proportion equation
493,589.79 : 740,384.69 = 133,760.63 : x - Step 2: Convert to fraction form
493,589.79/740,384.69 = 133,760.63/x - Step 3: Cross multiply
493,589.79x = 740,384.69 × 133,760.63 - Step 4: Simplify right side
493,589.79x = 99,034,320,917.57 - Step 5: Solve for x
x = 99,034,320,917.57/493,589.79 - Step 6: Final answer
x = 200,640.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.