Finding the Fourth Proportional to 719,537.40, 992,935.62 and 397,240.68
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Solution
The fourth proportional to 719,537.40, 992,935.62 and 397,240.68 is: 548,177.79
Step by Step Solution
- Step 1: Write the proportion equation
719,537.40 : 992,935.62 = 397,240.68 : x - Step 2: Convert to fraction form
719,537.40/992,935.62 = 397,240.68/x - Step 3: Cross multiply
719,537.40x = 992,935.62 × 397,240.68 - Step 4: Simplify right side
719,537.40x = 394,434,420,885.02 - Step 5: Solve for x
x = 394,434,420,885.02/719,537.40 - Step 6: Final answer
x = 548,177.79
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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.