Finding the Fourth Proportional to 714,831.22, 986,473.94 and 392,548.06
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Solution
The fourth proportional to 714,831.22, 986,473.94 and 392,548.06 is: 541,720.09
Step by Step Solution
- Step 1: Write the proportion equation
714,831.22 : 986,473.94 = 392,548.06 : x - Step 2: Convert to fraction form
714,831.22/986,473.94 = 392,548.06/x - Step 3: Cross multiply
714,831.22x = 986,473.94 × 392,548.06 - Step 4: Simplify right side
714,831.22x = 387,238,431,387.56 - Step 5: Solve for x
x = 387,238,431,387.56/714,831.22 - Step 6: Final answer
x = 541,720.09
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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.