Finding the Fourth Proportional to 719,421.99, 992,809.27 and 397,125.18
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Solution
The fourth proportional to 719,421.99, 992,809.27 and 397,125.18 is: 548,036.57
Step by Step Solution
- Step 1: Write the proportion equation
719,421.99 : 992,809.27 = 397,125.18 : x - Step 2: Convert to fraction form
719,421.99/992,809.27 = 397,125.18/x - Step 3: Cross multiply
719,421.99x = 992,809.27 × 397,125.18 - Step 4: Simplify right side
719,421.99x = 394,269,560,550.83 - Step 5: Solve for x
x = 394,269,560,550.83/719,421.99 - Step 6: Final answer
x = 548,036.57
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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.