Finding the Fourth Proportional to 1,358,456.66, 1,874,630.65 and 777,660.19
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Solution
The fourth proportional to 1,358,456.66, 1,874,630.65 and 777,660.19 is: 1,073,148.43
Step by Step Solution
- Step 1: Write the proportion equation
1,358,456.66 : 1,874,630.65 = 777,660.19 : x - Step 2: Convert to fraction form
1,358,456.66/1,874,630.65 = 777,660.19/x - Step 3: Cross multiply
1,358,456.66x = 1,874,630.65 × 777,660.19 - Step 4: Simplify right side
1,358,456.66x = 1,457,825,627,458.82 - Step 5: Solve for x
x = 1,457,825,627,458.82/1,358,456.66 - Step 6: Final answer
x = 1,073,148.43
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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.