Finding the Fourth Proportional to 456,650.79, 630,431.49 and 275,408.84
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Solution
The fourth proportional to 456,650.79, 630,431.49 and 275,408.84 is: 380,217.02
Step by Step Solution
- Step 1: Write the proportion equation
456,650.79 : 630,431.49 = 275,408.84 : x - Step 2: Convert to fraction form
456,650.79/630,431.49 = 275,408.84/x - Step 3: Cross multiply
456,650.79x = 630,431.49 × 275,408.84 - Step 4: Simplify right side
456,650.79x = 173,626,402,208.21 - Step 5: Solve for x
x = 173,626,402,208.21/456,650.79 - Step 6: Final answer
x = 380,217.02
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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.