Finding the Fourth Proportional to 456,879.36, 630,691.20 and 343,729.92
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Solution
The fourth proportional to 456,879.36, 630,691.20 and 343,729.92 is: 474,496.02
Step by Step Solution
- Step 1: Write the proportion equation
456,879.36 : 630,691.20 = 343,729.92 : x - Step 2: Convert to fraction form
456,879.36/630,691.20 = 343,729.92/x - Step 3: Cross multiply
456,879.36x = 630,691.20 × 343,729.92 - Step 4: Simplify right side
456,879.36x = 216,787,435,720.70 - Step 5: Solve for x
x = 216,787,435,720.70/456,879.36 - Step 6: Final answer
x = 474,496.02
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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.