Finding the Fourth Proportional to 420,514.03, 630,867.64 and 120,997.09
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Solution
The fourth proportional to 420,514.03, 630,867.64 and 120,997.09 is: 181,523.43
Step by Step Solution
- Step 1: Write the proportion equation
420,514.03 : 630,867.64 = 120,997.09 : x - Step 2: Convert to fraction form
420,514.03/630,867.64 = 120,997.09/x - Step 3: Cross multiply
420,514.03x = 630,867.64 × 120,997.09 - Step 4: Simplify right side
420,514.03x = 76,333,149,889.84 - Step 5: Solve for x
x = 76,333,149,889.84/420,514.03 - Step 6: Final answer
x = 181,523.43
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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.