Finding the Fourth Proportional to 1,212,644.20, 1,673,567.28 and 906,188.44
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Solution
The fourth proportional to 1,212,644.20, 1,673,567.28 and 906,188.44 is: 1,250,628.44
Step by Step Solution
- Step 1: Write the proportion equation
1,212,644.20 : 1,673,567.28 = 906,188.44 : x - Step 2: Convert to fraction form
1,212,644.20/1,673,567.28 = 906,188.44/x - Step 3: Cross multiply
1,212,644.20x = 1,673,567.28 × 906,188.44 - Step 4: Simplify right side
1,212,644.20x = 1,516,567,322,698.24 - Step 5: Solve for x
x = 1,516,567,322,698.24/1,212,644.20 - Step 6: Final answer
x = 1,250,628.44
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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.