Finding the Fourth Proportional to 438,920.92, 605,760.21 and 247,946.68
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Solution
The fourth proportional to 438,920.92, 605,760.21 and 247,946.68 is: 342,194.28
Step by Step Solution
- Step 1: Write the proportion equation
438,920.92 : 605,760.21 = 247,946.68 : x - Step 2: Convert to fraction form
438,920.92/605,760.21 = 247,946.68/x - Step 3: Cross multiply
438,920.92x = 605,760.21 × 247,946.68 - Step 4: Simplify right side
438,920.92x = 150,196,228,677.07 - Step 5: Solve for x
x = 150,196,228,677.07/438,920.92 - Step 6: Final answer
x = 342,194.28
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1.5x scale
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.