Finding the Fourth Proportional to 2,125,148.05, 2,932,705.40 and 1,207,378.81
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Solution
The fourth proportional to 2,125,148.05, 2,932,705.40 and 1,207,378.81 is: 1,666,183.38
Step by Step Solution
- Step 1: Write the proportion equation
2,125,148.05 : 2,932,705.40 = 1,207,378.81 : x - Step 2: Convert to fraction form
2,125,148.05/2,932,705.40 = 1,207,378.81/x - Step 3: Cross multiply
2,125,148.05x = 2,932,705.40 × 1,207,378.81 - Step 4: Simplify right side
2,125,148.05x = 3,540,886,355,932.57 - Step 5: Solve for x
x = 3,540,886,355,932.57/2,125,148.05 - Step 6: Final answer
x = 1,666,183.38
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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.