Finding the Fourth Proportional to 438,821.82, 605,586.06 and 247,863.60
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Solution
The fourth proportional to 438,821.82, 605,586.06 and 247,863.60 is: 342,058.52
Step by Step Solution
- Step 1: Write the proportion equation
438,821.82 : 605,586.06 = 247,863.60 : x - Step 2: Convert to fraction form
438,821.82/605,586.06 = 247,863.60/x - Step 3: Cross multiply
438,821.82x = 605,586.06 × 247,863.60 - Step 4: Simplify right side
438,821.82x = 150,102,740,941.42 - Step 5: Solve for x
x = 150,102,740,941.42/438,821.82 - Step 6: Final answer
x = 342,058.52
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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.