Finding the Fourth Proportional to 1,081,727.93, 1,492,829.70 and 622,831.07
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Solution
The fourth proportional to 1,081,727.93, 1,492,829.70 and 622,831.07 is: 859,532.88
Step by Step Solution
- Step 1: Write the proportion equation
1,081,727.93 : 1,492,829.70 = 622,831.07 : x - Step 2: Convert to fraction form
1,081,727.93/1,492,829.70 = 622,831.07/x - Step 3: Cross multiply
1,081,727.93x = 1,492,829.70 × 622,831.07 - Step 4: Simplify right side
1,081,727.93x = 929,780,719,378.78 - Step 5: Solve for x
x = 929,780,719,378.78/1,081,727.93 - Step 6: Final answer
x = 859,532.88
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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.