Finding the Fourth Proportional to 1,299,831.20, 1,793,733.49 and 719,039.19
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Solution
The fourth proportional to 1,299,831.20, 1,793,733.49 and 719,039.19 is: 992,255.52
Step by Step Solution
- Step 1: Write the proportion equation
1,299,831.20 : 1,793,733.49 = 719,039.19 : x - Step 2: Convert to fraction form
1,299,831.20/1,793,733.49 = 719,039.19/x - Step 3: Cross multiply
1,299,831.20x = 1,793,733.49 × 719,039.19 - Step 4: Simplify right side
1,299,831.20x = 1,289,764,683,350.77 - Step 5: Solve for x
x = 1,289,764,683,350.77/1,299,831.20 - Step 6: Final answer
x = 992,255.52
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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.