Finding the Fourth Proportional to 719,471.54, 992,872.88 and 392,785.09
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Solution
The fourth proportional to 719,471.54, 992,872.88 and 392,785.09 is: 542,044.60
Step by Step Solution
- Step 1: Write the proportion equation
719,471.54 : 992,872.88 = 392,785.09 : x - Step 2: Convert to fraction form
719,471.54/992,872.88 = 392,785.09/x - Step 3: Cross multiply
719,471.54x = 992,872.88 × 392,785.09 - Step 4: Simplify right side
719,471.54x = 389,985,663,529.36 - Step 5: Solve for x
x = 389,985,663,529.36/719,471.54 - Step 6: Final answer
x = 542,044.60
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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.