Finding the Fourth Proportional to 1,251,453.12, 1,728,430.56 and 848,345.28
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Solution
The fourth proportional to 1,251,453.12, 1,728,430.56 and 848,345.28 is: 1,171,682.65
Step by Step Solution
- Step 1: Write the proportion equation
1,251,453.12 : 1,728,430.56 = 848,345.28 : x - Step 2: Convert to fraction form
1,251,453.12/1,728,430.56 = 848,345.28/x - Step 3: Cross multiply
1,251,453.12x = 1,728,430.56 × 848,345.28 - Step 4: Simplify right side
1,251,453.12x = 1,466,305,907,383.76 - Step 5: Solve for x
x = 1,466,305,907,383.76/1,251,453.12 - Step 6: Final answer
x = 1,171,682.65
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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.