Finding the Fourth Proportional to 1,068,831.09, 1,603,351.53 and 310,678.79
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Solution
The fourth proportional to 1,068,831.09, 1,603,351.53 and 310,678.79 is: 466,048.67
Step by Step Solution
- Step 1: Write the proportion equation
1,068,831.09 : 1,603,351.53 = 310,678.79 : x - Step 2: Convert to fraction form
1,068,831.09/1,603,351.53 = 310,678.79/x - Step 3: Cross multiply
1,068,831.09x = 1,603,351.53 × 310,678.79 - Step 4: Simplify right side
1,068,831.09x = 498,127,305,268.29 - Step 5: Solve for x
x = 498,127,305,268.29/1,068,831.09 - Step 6: Final answer
x = 466,048.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.