Finding the Fourth Proportional to 1,382,831.12, 1,908,432.24 and 839,104.68
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Solution
The fourth proportional to 1,382,831.12, 1,908,432.24 and 839,104.68 is: 1,158,040.49
Step by Step Solution
- Step 1: Write the proportion equation
1,382,831.12 : 1,908,432.24 = 839,104.68 : x - Step 2: Convert to fraction form
1,382,831.12/1,908,432.24 = 839,104.68/x - Step 3: Cross multiply
1,382,831.12x = 1,908,432.24 × 839,104.68 - Step 4: Simplify right side
1,382,831.12x = 1,601,374,424,046.88 - Step 5: Solve for x
x = 1,601,374,424,046.88/1,382,831.12 - Step 6: Final answer
x = 1,158,040.49
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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.