Finding the Fourth Proportional to 1,220,831.04, 1,828,884.96 and 686,729.28
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Solution
The fourth proportional to 1,220,831.04, 1,828,884.96 and 686,729.28 is: 1,028,765.50
Step by Step Solution
- Step 1: Write the proportion equation
1,220,831.04 : 1,828,884.96 = 686,729.28 : x - Step 2: Convert to fraction form
1,220,831.04/1,828,884.96 = 686,729.28/x - Step 3: Cross multiply
1,220,831.04x = 1,828,884.96 × 686,729.28 - Step 4: Simplify right side
1,220,831.04x = 1,255,948,851,783.63 - Step 5: Solve for x
x = 1,255,948,851,783.63/1,220,831.04 - Step 6: Final answer
x = 1,028,765.50
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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.