Finding the Fourth Proportional to 1,493,107.80, 2,239,661.70 and 1,115,194.20
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Solution
The fourth proportional to 1,493,107.80, 2,239,661.70 and 1,115,194.20 is: 1,672,791.30
Step by Step Solution
- Step 1: Write the proportion equation
1,493,107.80 : 2,239,661.70 = 1,115,194.20 : x - Step 2: Convert to fraction form
1,493,107.80/2,239,661.70 = 1,115,194.20/x - Step 3: Cross multiply
1,493,107.80x = 2,239,661.70 × 1,115,194.20 - Step 4: Simplify right side
1,493,107.80x = 2,497,657,737,802.14 - Step 5: Solve for x
x = 2,497,657,737,802.14/1,493,107.80 - Step 6: Final answer
x = 1,672,791.30
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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.