Finding the Fourth Proportional to 489,910.12, 734,676.24 and 190,351.26
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Solution
The fourth proportional to 489,910.12, 734,676.24 and 190,351.26 is: 285,453.48
Step by Step Solution
- Step 1: Write the proportion equation
489,910.12 : 734,676.24 = 190,351.26 : x - Step 2: Convert to fraction form
489,910.12/734,676.24 = 190,351.26/x - Step 3: Cross multiply
489,910.12x = 734,676.24 × 190,351.26 - Step 4: Simplify right side
489,910.12x = 139,846,547,976.06 - Step 5: Solve for x
x = 139,846,547,976.06/489,910.12 - Step 6: Final answer
x = 285,453.48
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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.