Finding the Fourth Proportional to 1,296,612.20, 1,943,265.90 and 727,992.20
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Solution
The fourth proportional to 1,296,612.20, 1,943,265.90 and 727,992.20 is: 1,091,060.55
Step by Step Solution
- Step 1: Write the proportion equation
1,296,612.20 : 1,943,265.90 = 727,992.20 : x - Step 2: Convert to fraction form
1,296,612.20/1,943,265.90 = 727,992.20/x - Step 3: Cross multiply
1,296,612.20x = 1,943,265.90 × 727,992.20 - Step 4: Simplify right side
1,296,612.20x = 1,414,682,417,725.98 - Step 5: Solve for x
x = 1,414,682,417,725.98/1,296,612.20 - Step 6: Final answer
x = 1,091,060.55
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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.