Finding the Fourth Proportional to 489,784.12, 734,408.34 and 152,734.68
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Solution
The fourth proportional to 489,784.12, 734,408.34 and 152,734.68 is: 229,018.50
Step by Step Solution
- Step 1: Write the proportion equation
489,784.12 : 734,408.34 = 152,734.68 : x - Step 2: Convert to fraction form
489,784.12/734,408.34 = 152,734.68/x - Step 3: Cross multiply
489,784.12x = 734,408.34 × 152,734.68 - Step 4: Simplify right side
489,784.12x = 112,169,622,799.23 - Step 5: Solve for x
x = 112,169,622,799.23/489,784.12 - Step 6: Final answer
x = 229,018.50
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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.