Finding the Fourth Proportional to 2,117,970.92, 2,923,224.96 and 1,258,365.68
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Solution
The fourth proportional to 2,117,970.92, 2,923,224.96 and 1,258,365.68 is: 1,736,797.20
Step by Step Solution
- Step 1: Write the proportion equation
2,117,970.92 : 2,923,224.96 = 1,258,365.68 : x - Step 2: Convert to fraction form
2,117,970.92/2,923,224.96 = 1,258,365.68/x - Step 3: Cross multiply
2,117,970.92x = 2,923,224.96 × 1,258,365.68 - Step 4: Simplify right side
2,117,970.92x = 3,678,485,964,583.37 - Step 5: Solve for x
x = 3,678,485,964,583.37/2,117,970.92 - Step 6: Final answer
x = 1,736,797.20
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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.