Finding the Fourth Proportional to 719,422.74, 992,803.58 and 397,133.06
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Solution
The fourth proportional to 719,422.74, 992,803.58 and 397,133.06 is: 548,043.72
Step by Step Solution
- Step 1: Write the proportion equation
719,422.74 : 992,803.58 = 397,133.06 : x - Step 2: Convert to fraction form
719,422.74/992,803.58 = 397,133.06/x - Step 3: Cross multiply
719,422.74x = 992,803.58 × 397,133.06 - Step 4: Simplify right side
719,422.74x = 394,275,116,754.67 - Step 5: Solve for x
x = 394,275,116,754.67/719,422.74 - Step 6: Final answer
x = 548,043.72
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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.