Finding the Fourth Proportional to 1,276,438.72, 1,761,450.72 and 703,478.68
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Solution
The fourth proportional to 1,276,438.72, 1,761,450.72 and 703,478.68 is: 970,781.45
Step by Step Solution
- Step 1: Write the proportion equation
1,276,438.72 : 1,761,450.72 = 703,478.68 : x - Step 2: Convert to fraction form
1,276,438.72/1,761,450.72 = 703,478.68/x - Step 3: Cross multiply
1,276,438.72x = 1,761,450.72 × 703,478.68 - Step 4: Simplify right side
1,276,438.72x = 1,239,143,027,390.65 - Step 5: Solve for x
x = 1,239,143,027,390.65/1,276,438.72 - Step 6: Final answer
x = 970,781.45
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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.