Finding the Fourth Proportional to 1,392,883.04, 1,922,258.64 and 781,232.00
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Solution
The fourth proportional to 1,392,883.04, 1,922,258.64 and 781,232.00 is: 1,078,145.05
Step by Step Solution
- Step 1: Write the proportion equation
1,392,883.04 : 1,922,258.64 = 781,232.00 : x - Step 2: Convert to fraction form
1,392,883.04/1,922,258.64 = 781,232.00/x - Step 3: Cross multiply
1,392,883.04x = 1,922,258.64 × 781,232.00 - Step 4: Simplify right side
1,392,883.04x = 1,501,729,952,233.19 - Step 5: Solve for x
x = 1,501,729,952,233.19/1,392,883.04 - Step 6: Final answer
x = 1,078,145.05
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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.