Finding the Fourth Proportional to 456,636.18, 630,247.06 and 275,377.62
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Solution
The fourth proportional to 456,636.18, 630,247.06 and 275,377.62 is: 380,074.86
Step by Step Solution
- Step 1: Write the proportion equation
456,636.18 : 630,247.06 = 275,377.62 : x - Step 2: Convert to fraction form
456,636.18/630,247.06 = 275,377.62/x - Step 3: Cross multiply
456,636.18x = 630,247.06 × 275,377.62 - Step 4: Simplify right side
456,636.18x = 173,555,931,826.59 - Step 5: Solve for x
x = 173,555,931,826.59/456,636.18 - Step 6: Final answer
x = 380,074.86
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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.