Finding the Fourth Proportional to 719,491.40, 992,892.19 and 397,194.63
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Solution
The fourth proportional to 719,491.40, 992,892.19 and 397,194.63 is: 548,125.31
Step by Step Solution
- Step 1: Write the proportion equation
719,491.40 : 992,892.19 = 397,194.63 : x - Step 2: Convert to fraction form
719,491.40/992,892.19 = 397,194.63/x - Step 3: Cross multiply
719,491.40x = 992,892.19 × 397,194.63 - Step 4: Simplify right side
719,491.40x = 394,371,446,036.94 - Step 5: Solve for x
x = 394,371,446,036.94/719,491.40 - Step 6: Final answer
x = 548,125.31
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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.