Finding the Fourth Proportional to 744,228.87, 1,027,112.09 and 438,401.49
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Solution
The fourth proportional to 744,228.87, 1,027,112.09 and 438,401.49 is: 605,038.97
Step by Step Solution
- Step 1: Write the proportion equation
744,228.87 : 1,027,112.09 = 438,401.49 : x - Step 2: Convert to fraction form
744,228.87/1,027,112.09 = 438,401.49/x - Step 3: Cross multiply
744,228.87x = 1,027,112.09 × 438,401.49 - Step 4: Simplify right side
744,228.87x = 450,287,470,653.01 - Step 5: Solve for x
x = 450,287,470,653.01/744,228.87 - Step 6: Final answer
x = 605,038.97
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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.