Finding the Fourth Proportional to 719,553.30, 992,963.79 and 397,257.54
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Solution
The fourth proportional to 719,553.30, 992,963.79 and 397,257.54 is: 548,204.49
Step by Step Solution
- Step 1: Write the proportion equation
719,553.30 : 992,963.79 = 397,257.54 : x - Step 2: Convert to fraction form
719,553.30/992,963.79 = 397,257.54/x - Step 3: Cross multiply
719,553.30x = 992,963.79 × 397,257.54 - Step 4: Simplify right side
719,553.30x = 394,462,352,524.48 - Step 5: Solve for x
x = 394,462,352,524.48/719,553.30 - Step 6: Final answer
x = 548,204.49
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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.