Finding the Fourth Proportional to 1,225,120.44, 1,692,395.06 and 981,722.07
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Solution
The fourth proportional to 1,225,120.44, 1,692,395.06 and 981,722.07 is: 1,356,161.83
Step by Step Solution
- Step 1: Write the proportion equation
1,225,120.44 : 1,692,395.06 = 981,722.07 : x - Step 2: Convert to fraction form
1,225,120.44/1,692,395.06 = 981,722.07/x - Step 3: Cross multiply
1,225,120.44x = 1,692,395.06 × 981,722.07 - Step 4: Simplify right side
1,225,120.44x = 1,661,461,576,652.36 - Step 5: Solve for x
x = 1,661,461,576,652.36/1,225,120.44 - Step 6: Final answer
x = 1,356,161.83
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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.