Finding the Fourth Proportional to 719,213.24, 992,485.26 and 396,919.19
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Solution
The fourth proportional to 719,213.24, 992,485.26 and 396,919.19 is: 547,732.47
Step by Step Solution
- Step 1: Write the proportion equation
719,213.24 : 992,485.26 = 396,919.19 : x - Step 2: Convert to fraction form
719,213.24/992,485.26 = 396,919.19/x - Step 3: Cross multiply
719,213.24x = 992,485.26 × 396,919.19 - Step 4: Simplify right side
719,213.24x = 393,936,440,523.71 - Step 5: Solve for x
x = 393,936,440,523.71/719,213.24 - Step 6: Final answer
x = 547,732.47
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1.5x scale
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.