Finding the Fourth Proportional to 838,217.57, 1,257,513.86 and 305,738.62
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Solution
The fourth proportional to 838,217.57, 1,257,513.86 and 305,738.62 is: 458,676.32
Step by Step Solution
- Step 1: Write the proportion equation
838,217.57 : 1,257,513.86 = 305,738.62 : x - Step 2: Convert to fraction form
838,217.57/1,257,513.86 = 305,738.62/x - Step 3: Cross multiply
838,217.57x = 1,257,513.86 × 305,738.62 - Step 4: Simplify right side
838,217.57x = 384,470,549,807.84 - Step 5: Solve for x
x = 384,470,549,807.84/838,217.57 - Step 6: Final answer
x = 458,676.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.