Finding the Fourth Proportional to 822,112.92, 1,134,660.21 and 478,055.31
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Solution
The fourth proportional to 822,112.92, 1,134,660.21 and 478,055.31 is: 659,800.28
Step by Step Solution
- Step 1: Write the proportion equation
822,112.92 : 1,134,660.21 = 478,055.31 : x - Step 2: Convert to fraction form
822,112.92/1,134,660.21 = 478,055.31/x - Step 3: Cross multiply
822,112.92x = 1,134,660.21 × 478,055.31 - Step 4: Simplify right side
822,112.92x = 542,430,338,436.22 - Step 5: Solve for x
x = 542,430,338,436.22/822,112.92 - Step 6: Final answer
x = 659,800.28
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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.