Finding the Fourth Proportional to 1,378,818.99, 1,901,993.13 and 827,392.05
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Solution
The fourth proportional to 1,378,818.99, 1,901,993.13 and 827,392.05 is: 1,141,334.73
Step by Step Solution
- Step 1: Write the proportion equation
1,378,818.99 : 1,901,993.13 = 827,392.05 : x - Step 2: Convert to fraction form
1,378,818.99/1,901,993.13 = 827,392.05/x - Step 3: Cross multiply
1,378,818.99x = 1,901,993.13 × 827,392.05 - Step 4: Simplify right side
1,378,818.99x = 1,573,693,994,916.62 - Step 5: Solve for x
x = 1,573,693,994,916.62/1,378,818.99 - Step 6: Final answer
x = 1,141,334.73
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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.