Finding the Fourth Proportional to 456,618.92, 630,134.86 and 252,678.42
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Solution
The fourth proportional to 456,618.92, 630,134.86 and 252,678.42 is: 348,696.63
Step by Step Solution
- Step 1: Write the proportion equation
456,618.92 : 630,134.86 = 252,678.42 : x - Step 2: Convert to fraction form
456,618.92/630,134.86 = 252,678.42/x - Step 3: Cross multiply
456,618.92x = 630,134.86 × 252,678.42 - Step 4: Simplify right side
456,618.92x = 159,221,480,811.72 - Step 5: Solve for x
x = 159,221,480,811.72/456,618.92 - Step 6: Final answer
x = 348,696.63
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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.