Finding the Fourth Proportional to 719,444.66, 992,833.79 and 397,154.97
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Solution
The fourth proportional to 719,444.66, 992,833.79 and 397,154.97 is: 548,073.95
Step by Step Solution
- Step 1: Write the proportion equation
719,444.66 : 992,833.79 = 397,154.97 : x - Step 2: Convert to fraction form
719,444.66/992,833.79 = 397,154.97/x - Step 3: Cross multiply
719,444.66x = 992,833.79 × 397,154.97 - Step 4: Simplify right side
719,444.66x = 394,308,872,096.66 - Step 5: Solve for x
x = 394,308,872,096.66/719,444.66 - Step 6: Final answer
x = 548,073.95
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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.