Finding the Fourth Proportional to 1,392,093.80, 2,088,140.70 and 919,701.80
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Solution
The fourth proportional to 1,392,093.80, 2,088,140.70 and 919,701.80 is: 1,379,552.70
Step by Step Solution
- Step 1: Write the proportion equation
1,392,093.80 : 2,088,140.70 = 919,701.80 : x - Step 2: Convert to fraction form
1,392,093.80/2,088,140.70 = 919,701.80/x - Step 3: Cross multiply
1,392,093.80x = 2,088,140.70 × 919,701.80 - Step 4: Simplify right side
1,392,093.80x = 1,920,466,760,443.26 - Step 5: Solve for x
x = 1,920,466,760,443.26/1,392,093.80 - Step 6: Final answer
x = 1,379,552.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.