Finding the Fourth Proportional to 1,138,422.36, 1,571,055.36 and 622,204.92
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Solution
The fourth proportional to 1,138,422.36, 1,571,055.36 and 622,204.92 is: 858,660.55
Step by Step Solution
- Step 1: Write the proportion equation
1,138,422.36 : 1,571,055.36 = 622,204.92 : x - Step 2: Convert to fraction form
1,138,422.36/1,571,055.36 = 622,204.92/x - Step 3: Cross multiply
1,138,422.36x = 1,571,055.36 × 622,204.92 - Step 4: Simplify right side
1,138,422.36x = 977,518,374,584.37 - Step 5: Solve for x
x = 977,518,374,584.37/1,138,422.36 - Step 6: Final answer
x = 858,660.55
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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.