Finding the Fourth Proportional to 572,523.80, 858,785.70 and 493,791.80
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Solution
The fourth proportional to 572,523.80, 858,785.70 and 493,791.80 is: 740,687.70
Step by Step Solution
- Step 1: Write the proportion equation
572,523.80 : 858,785.70 = 493,791.80 : x - Step 2: Convert to fraction form
572,523.80/858,785.70 = 493,791.80/x - Step 3: Cross multiply
572,523.80x = 858,785.70 × 493,791.80 - Step 4: Simplify right side
572,523.80x = 424,061,336,617.26 - Step 5: Solve for x
x = 424,061,336,617.26/572,523.80 - Step 6: Final answer
x = 740,687.70
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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.