Finding the Fourth Proportional to 1,586,392.74, 2,189,247.45 and 861,239.91
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Solution
The fourth proportional to 1,586,392.74, 2,189,247.45 and 861,239.91 is: 1,188,524.90
Step by Step Solution
- Step 1: Write the proportion equation
1,586,392.74 : 2,189,247.45 = 861,239.91 : x - Step 2: Convert to fraction form
1,586,392.74/2,189,247.45 = 861,239.91/x - Step 3: Cross multiply
1,586,392.74x = 2,189,247.45 × 861,239.91 - Step 4: Simplify right side
1,586,392.74x = 1,885,467,276,805.73 - Step 5: Solve for x
x = 1,885,467,276,805.73/1,586,392.74 - Step 6: Final answer
x = 1,188,524.90
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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.